TP Link WA850RE Users Manual

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TL-WA850RE
REV.:1.1.0
300Mbps Universal WiFi Range Extender
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COPYRIGHT & TRADEMARKS
Specifications are subject to change wi thout notice. is a registered trademark of TP-LINK TECHNOLOGIES CO., LTD. Other brands and product names are trademarks or registered trademarks of their respective hol ders.
No part of the specifications may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from TP-LINK TECHNOLOGIES CO., LTD. Copyright © 2013 TP-LINK TECHNOLO GIES CO., LTD.
All rights reserved.
http://www.tp-link.com
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FCC STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digit al device, pursuant to part 15 of the FCC Rules. These l imi ts are des ign ed to pr ovid e reas onabl e prot ect io n against harmful interference in a resid ential ins tallati on. This equipm ent generat es, uses and can radiate radio frequency energy and, if not ins talled and used in accordance wi th the instructions, may cause harmful interference to radio com munications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to c orrect the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver
is connected.
Consult the dealer or an experienced radio/ TV technician for help.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
1) This device may not cause harmful interference.
2) This device must accept any interference received, including interference that may cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equi pment.
Note: The manufacturer is not responsible for any radio or tv interference caused by unauthorized modifications to this equipment. Such modifications could void t he user ’s authority t o operate th e equipment.
FCC RF Radiation Exposure Statement
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This device and its antenna must not be co-locat ed or operating in conjunc tion with any other antenna or transmitter.
“To comply with FCC RF exposure compliance requirements, this grant is applicable to only Mobile Configurations. The antennas used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and m ust not be co-located or operating in conjunction with any other antenna or transm i tter.”
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CE Mark Warning
This is a class B product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures.
Canadian Compliance Statement
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions:
(1)This device may not cause interference, and (2)This device must accept any interference, including interference that may cause undesired
operation of the device. Cet appareil est conforme aux norms CNR exemptes de licence d’Industrie Canada. Le
fonctionnement est soumis aux deux conditions s uivantes: (1)cet appareil ne doit pas provoquer d’interf érences et (2)cet appareil doit accepter toute interférenc e, y compris celles susceptibles de provoquer un
fonctionnement non souhaité de l’appareil.
Industry Canada Statement
Complies with the Canadian ICES-003 Class B specifications. Cet appareil numérique de la classe B est conform e à l a norme NMB-003 du Canada. This device complies with RSS 210 of Industry Canada. This Class B device meets all the
requirements of the Canadian interference-c ausing equipment regulations. Cet appareil numérique de la Classe B respecte toutes les exigences du Règlement sur le
matériel brouilleur du Canada.
Korea Warning Statements
당해 무선설비는 운용중 전파혼신 가능성이 있음.
NCC Notice & BSMI Notice
注意!
依據 低功率電波輻射性電機管理辦法
第十二條 經型式認證合格之低功率射頻電機,非經許可,公司、商號或使用者均不得擅自變更頻 率、加大功率或變更原設計之特性或功能。
第十四條 低功率射頻電機之使用不得影響飛航安全及干擾合法通行;經發現有干擾現象時,應立 即停用,並改善至無干擾時方得繼續使用。前項合法通信,指依電信規定作業之無線電信。低功率 射頻電機需忍受合法通信或工業、科學以及醫療用電波輻射性電機設備之干擾。
安全諮詢及注意事項
●請使用原裝電源供應器或只能按照本產品注明的電源類型使用本產品。
●清潔本產品之前請先拔掉電源線。請勿使用液體、噴霧清潔劑或濕布進行清潔。
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AT
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BY
CA
CZ
DE
DK
EE
ES
FI
FR
GB
GR
HU
IE
IT
LT
LV
MT
NL
NO
PL
PT
RO
RU
SE
SK
TR
UA
●注意防潮,請勿將水或其他液體潑灑到本產品上。 
●插槽與開口供通風使用,以確保本產品的操作可靠並防止過熱,請勿堵塞或覆蓋開口。
●請勿將本產品置放於靠近熱源的地方。除非有正常的通風,否則不可放在密閉位置中。
●請不要私自打開機殼,不要嘗試自行維修本產品,請由授權的專業人士進行此項工作。
Продукт сертифіковано згідно с правилами системи УкрСЕПРО на відповідність вимогам нормативних документів та вимогам, що передбачені чинними законодавчими актами
України.
Safety Information
When product has power button, the power button i s one of the way to shut off the produc t;
when there is no power button, the only way to completely shut off power is to disconnect the product or the power adapter from the power source.
Don’t disassemble the product, or make repairs yourself. You run the risk of elect ric shock
and voiding the limited warranty. If you need service, please contact us.
Avoid water and wet locations. This product can be used in the following count ries:
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TP-LINK TECHNOLOGIES CO., LTD
DECLARATION OF CONFORMITY
For the following equipment: Product Description: 300Mbps Universal WiFi Ran g e Extender Model No.: TL-WA850RE Trademark: TP-LINK We declare under our own responsibility that the above products satisfy all the technical
regulations applicable to the product wit hin the scope of Council Directives: Directives 1999/5/EC, Directives 2004/108/EC, Directives 2006/95/EC, Directives 1999 /519/EC,
Directives 2011/65/EU The above product is in conformity with the following standards or other normative documents
ETSI EN 300 328 V1.7.1: 2006 ETSI EN 301 489-1 V1.9.2:2011& ETSI EN 301 489-17 V2.2.1:2012 EN 55022:2010 EN 55024:2010 EN 61000-3-2:2006+A1:2009+A2:2009 EN 61000-3-3:2008 EN 60950-1:2006+A11:2009+A1:2010+A12:2011
EN 62311:2008
The product carries the CE Mark:
Person responsible for marking this declarati on:
Yang Hongliang Product Manager of International Business
Date of issue: 2013
TP-LINK TECHNOLOGIES CO., LTD.
Building 24 (floors 1, 3, 4, 5), and 28 (floors 1-4) Central Science and Technology Park,
Shennan Rd, Nanshan, Shenzhen, China
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CONTENTS
Package Contents .................................................................................................... 1
Chapter 1 Introduction ........................................................................................... 2
1.1 Product Overview .............................................................................................. 2
1.2 Main Features ................................................................................................... 2
1.3 Appearance ....................................................................................................... 2
Chapter 2 Hardware Installation ........................................................................... 4
2.1 Before You Begin .............................................................................................. 4
2.2 Basic Requirements .......................................................................................... 5
2.3 Connecting the Device ...................................................................................... 5
Chapter 3 Quick Installation Guide ....................................................................... 6
Chapter 4 Configure the Device .......................................................................... 10
4.1 Status .............................................................................................................. 10
4.2 Quick Setup .................................................................................................... 12
4.3 WPS ................................................................................................................ 12
4.4 Profile .............................................................................................................. 17
4.5 Network ........................................................................................................... 18
4.6 Wireless .......................................................................................................... 20
4.6.1 Wireless Settings ............................................................................................. 20
4.6.2 Wireless Security ............................................................................................. 21
4.6.3 Wireless MAC Filtering .................................................................................... 23
4.6.4 Wireless Advanced .......................................................................................... 25
4.6.5 Wireless Statistics ............................................................................................ 26
4.6.6 Throughput Monitor ......................................................................................... 27
4.7 DHCP .............................................................................................................. 28
4.7.1 DHCP Settings ................................................................................................. 28
4.7.2 DHCP Client List .............................................................................................. 29
4.8 System Tools .................................................................................................. 30
4.8.1 Firmware Upgrade ........................................................................................... 30
4.8.2 Factory Defaults ............................................................................................... 31
4.8.3 Backup & Restore ............................................................................................ 32
4.8.4 Reboot ............................................................................................................. 32
4.8.5 Password ......................................................................................................... 33
4.8.6 System Log ...................................................................................................... 33
Appendix A: Factory Defaults ............................................................................... 35
Appendix B: Troubleshooting ............................................................................... 36
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Appendix C: Specifications ................................................................................... 38
Appendix D: Glossary ............................................................................................ 39
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide

Package Contents

The following items should be found i n your package:
TL-WA850RE 300Mbps Universal WiFi Range Extender  Ethernet Cable  Quick Installation Guide  Resource CD for TL-WA850RE 300Mbps Universal WiFi Range Extender, including:
This User Guide
Note:
Make sure that the package contains the above items. If any of the lis ted items is damaged or missing, please contact your distributor.
Conventions
The Range Extender, the Device or TL-WA850RE mentioned in this User guide stands for TL-WA850RE 300Mbps Universal WiFi Range Extender without any expla nations.
Parameters provided in the pictures are just references for setting up the product, which may differ from the actual situation. You can set the parameters according to your demand.
The power plug may differ from t he picture illustrated in this UG due to different regional power specifications. As follows we just take that of EU version for example.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide

Chapter 1 Introduction

1.1 Product Overview

The TL-WA850RE 300Mbps Universal WiFi Range Extender is dedi cated to Small Office/Home Office (SOHO) wireless network solutions. It will enlarge your existing wireless network and mobility within your wireless network while also allowing you to connect a wired device to a wireless environment. Increased mobility and the absence of cabling will be beneficial for your network.
With using IEEE 802.11n wireless technology, t his devic e can transmi t wireles s data at the rate of up to 300Mbps. With multiple protection meas ures, including wireless LAN 64/128/152-bit WEP encryption, Wi-Fi protected Access (WPA2-PSK, WPA-PSK), the TL-WA850RE 300Mbps Universal WiFi Range Extender delivers complete data privacy.
It supports an easy wireless connection to the root AP (equipped with WPS/QSS button) by pressing the RE button on the front panel. It also supports an easy, web-based setup for installation and management. Even though you may not be familiar with the Range Extender, you can easily configure it with the help of this Guide. Before installing the Range E xtender, please look through this Guide to get the full information of the TL-WA850RE 300Mbps Universal WiFi Range Extender.

1.2 Main Features

Make use of IEEE 802.11n wireless technology  Provides multiple encryption security Types including: 64/128/152-bit WEP and
WPA-PSK/WPA2-PSK
Supports Built-in DHCP server  Supports one operating modes: Range Extender  Supports Firmware Upgrade  Supports Web management

1.3 Appearance

Figure 1-1
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
The Range Extender is connected the router successfully.
The Range Extender is not connected any router yet.
Power on.
No signal at present.
Signal is transferring. And it also shows the current si gnal strength the range extender received from the root AP after successful connection.
LED Explanation:
Name Status Indication
On
RE
Flashing
The Range Extender is connecting the router.
Off Off
Wireless
Flashing
The Wireless function is disabled. The Wireless function is enabled.
Off No Power.
Power
On
Ethernet
Signal
Strength
Off On
Flashing
Off
Solid
(1~5)
There is no device linked to the corresponding port. There is a device linked to the corresponding port bu t no activity. There is an active device linked to the correspondin g port.
Table 1-1
(RANGE EXTENDER/WPS): If your Wireless router or AP supports WPS or QSS function, you can press the WPS or QSS button and then press the RANGE EXTENDER button to establish a secure connecti on between the Wireless router (or AP) and the Range Extender TL-WA850RE.
RESET: This button is used to restore the Range Extender’s fact ory def ault settings.
There are two ways to reset the Range Extender’s factory defaults: Method One: With the Range Extender powered on, use a pin t o press and hold the RESET
button (about 8 seconds) until the System LED becomes quick-flash from slow-flash. And then release the button and wait the Range Extende r to reboot to its factory default settings.
Method Two: Restore the default settings from “System Tools > F actory Defaults” of the Range Extender's Web-based management page.
ETHERNET: One 10/100Mbps RJ45 Ethernet port used to add wireless connectivi ty to an
Ethernet-enabled device such as Internet TV , DVR, Gaming console and so on. Please note that this port is not allowed to be connected with rout er or AP.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide

Chapter 2 Hardware Installation

2.1 Before You Begin

Please read this User Guide carefully before ins talling and using the equipment. The operating distance range of your wireless connection can vary significantly depending on the physical position of the wireless devices. Factors that can weaken signals by getting in the way of your network’s radio waves are metal appliances or obst ruct ions , and walls . Typical ranges vary based on the types of materials and background RF (radio frequency) noise in your home or office.
In order to optimize the performance of TL-WA850RE, please follow the instructions below to achieve an ideal location (please make sure it is always within the wireless coverage of the wireless router).
1) Half-way Between - General ly, the ideal location fo r TL-WA850RE is half-way between the Wireless router and Wireless Client. If the wireless signal is not satisfactory, you may pla ce TL-WA850RE somewhat nearer to the Wireless router.
2) No Obstacles and Spacious - Clear obstacles in the way between TL-WA850RE and Wireless router. It’s better to locate it in a spac i ous place, such as near the corridors.
3) No Interference - Keep TL-WA850RE far away from wireless interference, whic h may come from electrical appliances that works in the same frequenc y band as TL-WA850RE, such as Blue tooth devices, cordless phones, mic rowave ovens, etc.
4) 3 Signal Lights - You can also find an ideal location via the signal lights on the front panel of TL-WA850RE. These lights show the strength of si gnal your range extender receives from the root AP. It's recommended that you choose a location where at least 3 signal lights light blue, in order to guarantee a good performance.
Note:
TP-LINK recommends that you connect to the Range Extender when your home network connection is poor, or when you want a larger wireless c overage to eliminate “dead zones ”. As in compliance with the wireless transmission protocol, all the Range Extender devices are set to work in half-duplex instead of full-duplex mode. In other words, the Range Extender has to process one-way communication between your root Wireless router (or AP) and the terminal clients; so the transmission time will be double -increased, while the speed will be decreased.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide

2.2 Basic Requirements

Place your Range Extender in a well-ventilated place far from direc t sunlight, any heater or
heating vent.
Leave at least 2 inches (5cm) space around the device for heat dissipation. Turn off your Range Extender and unplug the power adapter in a lighting storm to avoid
damage.
Use Web browser, such as Microsoft Internet Expl orer 5.0 or above, Net scape Navigator 6. 0
or above.
Operating temperature of the Range Extende r should be 0~40 (32~104). Operating humidity of the Range Extender should be 10%~90%RH (Non-condensing).

2.3 Connecting the Device

Figure 2-1 Typical connection of TL-WA850RE
To establish a typical connection of the Range E xt ender, please take the following steps:
1. Connect the Cable/DSL modem to a Wireless router with an Ethernet cable.
2. Plug your TL-WA850RE directly to a standard electrical wall socket, which is next to the
Wireless router.
3. Connect your Wireless Clients (such as notebook , pad, smart phone, etc.) to TL-WA850RE
wirelessly. Or you can connect your PC to the sole LAN port of Range Extender via an Ethernet cable.
4. Log in the web-based management page of TL-WA850RE and complete the configurations .
(Please refer to Chapter 3 Quick Installation Gui de or Cha pter 4 Configure the Device
for the configurations, as you need.) Through the web page configuration you can successfully connect TL-WA850RE to the wireless router.
5. Adjust an ideal location for TL-WA850RE. (Please refer to Section 2.1 Before You Be gin for detailed information about ideal locati on.)
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide

Chapter 3 Quick Installation Guide

This chapter will guide you to configur e your PC to communi cate with the Range E xtender and to configure and manage the TL-WA850RE 300Mbps Universal WiFi Range Extender easily with a Web-based utility.
With a Web-based utility, it is easy to configure and manage the TL-WA850RE 300Mbps Universal WiFi Range Extender. The Web-based utility can be used on any Windo ws, Macintosh or UNIX OS with a Web browser, such as Microsoft Internet Explorer, Mozilla Firefox or Apple Safari.
1. To access the configuration utility, open a web-browser and type in the domain name
http://tplinkextender.net in the address field of the browser.
Figure 3-1 Login to the Range Extender
After a moment, a login window will appear as shown i n Figure 3-2. Enter admin for the User Name and Password (both in lower case letters ). Then cl ick OK or press Enter.
Figure 3-2 Login Windows
Note:
If the above screen does not prompt, it means that your web-browser has been set to a proxy. Go to Tools menu>Internet Options>Connections>LAN Settings, in the screen that appears, cancel the Using Proxy checkbox, and click OK to finish it.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
2. A fter successful login, there will pop up the Qui ck Setup Start page. Click Next to get the
quick setup started.
Figure 3-3 Quick Setup Start
3. Figure 3-4 will appear for you to choose the region. Then cl ick Next to continue.
Figure 3-4 Quick Setup – Choose Region and Mode
4. The devi ce will detect the existing network. Please wait for a while.
Figure 3-5 Quick Setup – Detect Existing Network
5. A list of available wireless network will appear. Check the box before the SSID of your desired
network, and then click Next.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
Figure 3-6 Quick Setup – Available Wireless Networks
Note:
If you could not find your wireless network name (SSID) in the list, you can click redetect it or tick the checkbox before "Set S SID and MAC Manually" to manually configure the wireless settings.
Rescan
to
6. Wi reless Settings page will appear as shown in Figure 3-7. Enter the WiFi Pas sword of your
main router/AP, name your range extender WiFi network or keep it default, and then click Next to continue.
Figure 3-7 Quick Setup – Wireless Settings
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
7. Double-check your wireless setting and network s etti ng, when Figure 3-8 appears. If verif ied,
click Finish to complete the Quic k Setup. If there is anything wrong, click Back to return the previous pages and reconfigure it.
Figure 3-8 Quick Setup – Review Settings
Note:
1. It’s recommended to click the Export Settings button to save these settings as a txt file for your future reference.
2. It may take about 2 minutes for successful connection after you click Finish, please wait patiently.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide

Chapter 4 Configure the Device

This Chapter describes how to configure y our Range Extender via the web-based managem ent page. The TL-WA850RE 300Mbps Universal WiFi Range Extender is easy to configure and manage with the Web-based (Internet E xplorer, Netscape Chrome) management page, which can be launched on any windows, Macintosh or UNIX OS with a web browser.
After a successful login, you can conf igure and manage the device. There are eight main menus on the leftmost column of the web-based management page: Status, Quick Setup, WPS, Profile, Network, Wireless, DHCP and S ystem Tools. Submenus will be available after clicking one of the main menus. On the right of the web-based managem ent page are the detailed explanation s and instructions for the corresponding page.

4.1 Status

Selecting Status will enable you to view the Range Extender’s current status and configuration, all of which are read-only.
®
Navigat or, Firefox, Safari, Opera or
Figure 4-1 Status
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
Firmware Version - This field displays the current firmware version of the Range Extender.  Hardware Version - This field displays the current hardware version of the Range Extender.  Connection Status to Existing Network - This part shows you the current information of the
root wireless network which the device is connecting to.
Main Router/AP WiFi Network Name (SSID) - It shows the name of the wireless
network which your device is connecting to.
Signal - It shows the root wireless network's signal strength that the device has received. Connection Status - It shows whether your device has been connected to a wireless
network currently. "Connected" means the range extender have connected to a wireless network, while if it shows "disconnected", you can click "connect" to connect.
Wired - The following is the information of Wired LAN. You can configure them in the
Network page.
Range Extender MAC Address - The physi cal addres s of the s ystem, as seen from the
Network -> LAN page.
Range Extender IP Address - The IP address of the wired LAN. Subnet Mask - The subnet mask associated with IP address.
Wireless - These are the current wireless settings or information of the device. You can
configure them in the Wireless -> Wireless Settings page.
Operation Mode - Indicates the mode which the device is working on. "Disabl e" means
the wireless radio has been turned off.You can configure it in the Wireless -> Wireless Settings page.
Range Extender WiFi Network Name (SSID) - The Device's wireless network name
(also called SSID) which your PC or other device can be connected to.
Channel - The current wireless channel in use. Mode - The current wireless mode which the AP works on. Channel Width - The bandwidth of the wireless channel. Wireless Rate - It shows the current wireles s rate between the r ange extend er and your
PC or other devices which are connected to the it.
Traffic Statistics - The system traffic statistics.
Sent (Bytes) - Traffic that counted in bytes has been sent out from wireless. Sent (Packets) - Traffic that counted in packets has been sent out from wireless. Received (Bytes) - Traffic that count ed in bytes has been received from wireless. Received (Packets) - Traffic that counted in packets has been received from wireless.
System Up Time - The length of the time since the device was last powered on or reset.
Click the Refresh button to get the lat est status and settings of the device.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide

4.2 Quick Setup

Please refer to Chapter 3 Quick Installati on Guide.

4.3 WPS

WPS (Wi-Fi Protected Setup) can help you to quickly and securely connect to a network. This
section will guide you to add a new wireless device to an existing network quickly by WPS function. The WPS function can be configured on the page as shown in Figure 4-2.
Figure 4-2 WPS - Enabled
Operation Mode - Displays the current operation mode of the device. WPS Status - To enable or disable the WPS function here. Current PIN - The current value of the device's PIN is displayed here. The default PIN of the
device can be found in the label or User Guide.
Restore PIN - Restore the PIN of the device to its default. Gen New PIN - Click t his button, and then you can get a new random value for the device's
PIN. You can ensure the network security by generating a new PIN.
Disable PIN of this device - WPS external registrar of entering this device's PIN can be
disabled or enabled manually. If this device receives multiple fai led attempts to authenticate an external Registrar, this function will be disabled automatically.
Add device - You can add a new devic e to the existing network manually by clicking this
button.
To add a new device:
If the wireless adapter supports WPS, you can establish a wire less connection between wireless adapter and device using either PBC (Push Button Configuration) method or PIN method.
Note:
To build a success ful connection by WPS, you should also d o the corresponding configuration of the network adapter for WPS function meanwhile. And as for the configuration of the network adapter, here takes the Wireless Adapter of our company for example.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
Method One: Push the button of the Range Extender and Wireless Adapter
Step 1: Keep the “WPS Status” as Enabled and click the Add Device button in Figure 4-2, then
the following screen will appear.
Figure 4-3 Add A New Device
Step 2: Choose “Press the button of the new device in two minutes” and click Connect. Step 3: For the configurati on of the wireless adapter, please choos e “Push the button on my
access point or wireless router.” in the configuration utility of the WPS (as shown below), and click Connect.
Figure 4-4 The WPS Configuration Screen of Wireless Adapter
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
Step 4: Wait until the next screen appears. Click OK to complete the WPS configuration.
Figure 4-5 The WPS Configuration Screen of Wireless Adapter
Method Two: Enter the PIN into my Range Extender Step 1: Configure the wireless adapter. Plea se choose “Enter the PIN of this device into my
access point or wireless adapterin the configuration utility of the WPS (as shown
below), and click Connect.
Figure 4-6 The WPS Configuration Screen of wireless adapter
Note:
In this example, the default PIN code of this adapter is 19342306 as the above figure shows.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
Step 2: Configure the router. Keep the default “WPS Status” as Enabled and click the Add device
button in Figure 4-2, then the following screen will appear.
Figure 4-7
Step 3: Choose Ent er the new device's PIN and enter the PIN code of the wireless adapter in
the field behind PIN in the previous figure. Then cli ck Connect.
Figure 4-8
Method Three: Enter the PIN from my Range Extender Step 1: Get the Current PIN code of the Range Extender in Figure 4-2 (each Range Extender has
its unique PIN code. Here takes the PIN code 12345670 of this Range Extender for example).
Step 2: For the configuration of the wireless adapter, please choose “Enter the PIN of my
access point or wireless router” in the configuration utility of the WPS (as shown below), and enter the PIN code of the Range Extender into the PIN field. Then click Connect.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide
Figure 4-9 The WPS Configuration Screen of Wireless Adapter
Note:
The default PIN code of the Range Extender can be found in it s label or the WPS configuration screen as Figure 4-2.
You will see the following screen when the new device has successfully connected to the network.
1. The RE LED will be lighted on for about five minutes if the device has been successfully
2. The WPS function cannot be configured if the Wireless function of the Range Extender is
Figure 4-10
Note:
added to the network.
disabled. Please make sure the Wireless func tion is enabled before configuring the WPS.
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TL-WA850RE
300Mbps Universal WiFi Range Extender User Guide

4.4 Profile

Profile function can help you remember previousl y connected wireless networks. You can Edit, Delete or Add profiles in this page (as shown in Figure 4-11) for y our convenient
reconnection later on.
Figure 4-11 Profile
Choose - You can choose any one wireless network you want to connect to. Profile Name - The name you give to your wireless networks. By default, it's the same as root
SSID, but you can change it to any other names that you can easily remember and distinguish.
Root SSID - the SSID (wireless network name) of your root device, a wireless router or AP. MAC - The physical address of your root AP, als o cal l ed BSSID. Security Type - the security type of your root devic e. Modify - You can Edit or Delete the profiles.
Click Connect to connect the range ext ender to t he wireles s net work that you have cho sen in t he profile list. Click Add to add a new profile to the list. Click Delete All to delete all the information in the profile list.
To add a profile:
1. Click Add in the Profile list page as shown in Figure 4-11.
2. Configure the required parameters (as shown in Figure 4-12), including name your profile, enter the SSID of your root device (a wirel ess router or AP) an d its MAC addr ess, selec t the sec urity type of your root device and also enter the wireless password. Then click to Save your profile.
Figure 4-12 Add or Modify the Profile
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Profile Name - The name you give to your wireless networks. By default, it's the same as
root SSID, but you can change it to any other names that you can easil y remember and distinguish.
Root SSID - The wireless network name of your root AP this profile will connect to. MAC of Root Device - The MAC of your root device this profile will connect to. Wireless Security - The security type of your root wireless networks this profile will refer
to. Please make sure it's the same as the root AP's.
Wireless Passw ord - The wireless password of your root A P. Please make sure it's the
same as your root AP. Click Save to save this profile in the profile list and go back to the Profile List page. Click Back to go back to the Profile List page, without saving any configuration on this page.
3. After you’ve set and saved the profile, it will return to the pro file list page and display as in Figure 4-13.
Figure 4-13 Add or Modify the Profile Click Edit to further edit the profile(s), or Delete to delete the pr ofile(s). Click Connect to connect the range extender to the wireless network that you have chosen in
the profile list. Click Add to add a new profile to the list. Click Delete All to delete all the information in the profi l e list.

4.5 Network

The Network option al lows you to customize your local networ k manuall y by changin g the defaul t settings of the Range Extender.
Figure 4-14 Network Menu
Selecting Network > LAN will enable you t o configure the IP parameters of Network on this page.
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Figure 4-15 LAN – Smart IP (DHCP)
Figure 4-16 LAN – Static IP
MAC Address - The physical address of the LAN port, as seen from the LAN. The value
cannot be changed.
Type - Several IP types are supported, including: (1) Static IP; (2) Smart IP (DHCP), and they
are explained below.
Static IP - In this type, you can configure IP Address/Gateway manually. Smart IP (DHCP) - In this type, if your Range Extender have c onnected t o a router, your
client will dynamically get an IP Address/Gateway from the router, otherwise the client will get a IP Address/Gateway in the same network as you s et below. And this type is recommended.
IP Address - Enter the IP address of your Range Extender in dotted-decimal notation (factory
default setting is 192.168.0.254).
Subnet Mask - An address code that determines the size of the network. Normally use
255.255.255.0 as the subnet mask.
Gateway - The gateway should be in the same subnet as your IP address.
Note:
1. The IP parameters cannot be configured if you have chosen Smart IP (DHCP). In this situation the device will automatically configure the IP parameters appropriate to your nee d.
2. I f you are not familiar with the setting items in this page, it's strongly recommended to keep the provided default values, otherwi se may result in lower wireless network performan ce or even can't work.
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3. If you choose St atic IP, the domain nam e log in funct ion won't work, and yo u have to use the IP you set to log in the Range Extender's web based utility.

4.6 Wireless

The Wireless option, improving functionality and perf ormance for wireless network, can help you make the Range Extender an ideal solution for your wireless network. Here you can create a wireless local area network just through a few settings. Wireless Settings is used for the configuration of some basic parameters of the Range Extender. Wireless Security provides three different security types to secure your data and thus provide greater security for your wireless network. MAC filtering allows you to control the access of wireless stations to the Range Extender. Wireless Advanced allows you to configure some advanced pa rameters for the Range Extender. Throughput Monitor helps to watch wireless throughput information Wireless statistics enables you to get detailed information about the current connected wireless stations.
There are six s ubmenus under the Wireless menu (shown in Figure 4-17): Wireless Settings,
Wireless Security, Wireless MAC Filtering, Wireless Advanced, Wireless Statistics and Throughput Monitor. Click any of them, and you will be able to configure the corresponding
function. The detailed explanations for each submenu are provided below.
Figure 4-17 Wireless menu

4.6.1 Wireless Setti ngs

Selecting Wireless > Wireless Settings will enable you to c onfigure the basic settings for your wireless network on the screen below (Figure 4-18).This page allows you to configure the wireless mode for your device. Two operation modes are supported here, including Range Extender mode 1, and Range E xtender mode 2. The only difference between thes e two modes is that Range Extender mode 1 has WDS disabled while Range Extender mode 2 has WDS enabled. In both modes, the Range Extender will relay data to an associated root AP. The range extender function is enabled meanwhile. The wi reless repeater relays signal between its stations and the root AP for greater wireless range. Since the configurations are almost the same in either operation mode, here we just take that in Range Extende r mode 1 for example.
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Figure 4-18 Wireless Settings
Operation Mode - Two Operation Modes are supported, includi ng Range Extender mode 1
and Range Extender mode 2.
Range Extender Mode 1 - In this mode, the range extender will work as a proxy between
wireless stations and root device, this mode can compatible with the most wireless devices without WDS technology which means this mode will have a better compatibility.
Range Extender Mode 2 - In this mode, the range extender will help the wireless
stations communicate with root device directly and efficiently, but it requires the root device supporting WDS technology.
Survey - Click this button, you can search the AP whic h runs in the current channel. Main Router/AP WiFi Network Name(SSID) - The s sid of the AP your device is going to
connect to as a client. You can also use the search func tion to select the ssid to join.
MAC Address of Main Router/AP - The bssid of the AP your device is going to connect to as
a client. You can also use the search function to select the bssid to join.
Region - Select your region from the drop -down li st. This f ield specif ies the region whe re the
wireless function of this device can be us ed. It may be illegal to use the wireless function of this device in a region while you chose a different region in the drop-down list. If your country or region is not listed, please contact your local government agency for assistance.
Channel Width - The bandwidth of the wireless channel.
To apply any settings you have altered on the pa ge, please click the Save button, and then you will be reminded to reboot the device.

4.6.2 Wireless Security

Selecting Wireless > Wireless Security will enable you to configure wire less security for your wireless network to protect your data from intruders. The Range Extender provides two security types: WEP and WPA/WPA2-Personal. Wireless security can be set on the following screens. Since the configurations are almost the same in either operation mode, here we just take that in Range Extender mode 1 for example.
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Figure 4-19 Wireless Security
Operation Mode - Shows the current operation mode. Disable Security - Check this box radio button to disable wireless securit y. If disabled, the
wireless stations will be able to connect this device without encryption. It is strongly recommended that you choose one of the security types t o enable security.
WPA/ WPA2-Personal - Select WPA based on pre-shared key.
Version - You can select one of followi ng versions.
1) Automatic - Select WPA-PSK or WPA2-PSK automatically based on the wireless station's capability and request.
2) WPA-PSK - Pre-shared key of WPA.
3) WPA2-PSK - Pre-shared key of WPA2.
Encryption - When you select WPA-PSK or WPA2-PSK for Authentication Type, you
can select Automatic, TKIP or AES as Encryption.
Wireless Password - Enter a passphrase here.
Group Key Update Period - Specify the group key update interval in seconds. The value
can be either 0 or at least 30. Enter 0 to disable the update.
WEP - Select 802.11 WEP security.
Type - You can select one of following types.
1) Automatic - Select Shared Key or Open System authentication type automatical ly based on the wireless station's capability and request.
2) Shared Key - Select 802.11 Shared Ke y authentication type.
3) Open System - Select 802.11 Open System authentication type.
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WEP Key Format - You can sel ect ASCII or Hexadecimal format. ASCII format stands
for any combination of keyboard charac ters in the specified length. Hexadecim al format stands for any combination of hexadecimal digi ts (0-9, a-f, A-F) in the specified length.
WEP Key - Select which of the four keys will be used and enter the matching WEP key
information for your network in the selected key radio button. These values must be identical on all wireless stations in your network.
Key Type - You can select the WEP key length (64-bit, or 128-bit, or 152-bit.) for
encryption. "Disabled" means this WEP key ent ry i s invalid.
1) For 64-bit encryption - You can enter 10 hexadecimal digits (any combination of 0-9, a-f, A-F, zero key is not permitted) or 5 ASCII characters.
2) For 128-bit encryption - You can enter 26 hexadecimal digits (any combination of 0-9, a-f, A-F, zero key is not permitted) or 13 ASCII characters.
3) For 152-bit encryption - You can enter 32 hexadecimal digits (any combination of 0-9, a-f, A-F, zero key is not permitted) or 16 ASCII characters.
Note:
If you do not set the key, the wireless security function is still disabled even if you have selected Shared Key as Authentication Type.
Be sure to click the Save button to save your setti ngs on this page.

4.6.3 Wireless MAC Filtering

Selecting Wireless > Wireless MAC Filtering will allow you to set up some filtering rules to control wireless stations accessing the device, which depend on the station’s MAC address on the following screen as shown Figure 4-20. Since the configurat ions are almost the same in either operation mode, here we just take that in Range Extende r mode 1 for example.
Figure 4-20 Wireless MAC address Filtering
The Wireless MAC Address Filtering feature allows you to control wirel ess stations accessing the device, which depend on the station's MAC addresses.
Operation Mode - Shows the current operation mode.
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Wireless MAC Filtering - Click the Enable button to trigger the Wireless MAC Address
Filtering function. The default setting is disabled.
To Add a Wireless MAC Address filtering entry, cl ick the Add New… button. The “Add or Modify Wireless MAC Address Filtering entry" page will appear, shown in Figure 4-21.
Figure 4-21 Add or Modify Wireless MAC Address Fil tering entry
MAC Address - Enter the wireless station's M AC address that you want to control. Description - Give a simple description of the wireless station. Status - Select a status for this entry, either Enabled or Disabled.
To set up an entry, follow these instructions:
First, you must decide whether the uns pecified wireless stations can ac cess the device or not. If you desire that the unspecified wireless stati ons can access the device, please select the radio button Allow the stations not specified by any enabled entries in the list to access, otherwise, select the radio button Deny the statio ns not specified by any enabled entries in the list to
access.
To add a MAC Address Filtering entry, follow these instructions:
1. Enter the appropriate MAC Address into the MAC Address field. The format of the MAC Address is XX-XX-XX-XX-XX-XX (X is any hexadecimal digit). For example: 00-0A-EB-B0-00-0B.
2. Enter a simple description of the wireless station in the Description field. For example: Wireless station A.
3. Select Enabled or Disabled for this entry on the Status pull-down list.
4. Click the Save button to save this entry.
To add additional entries, repeat steps 1-4.
To modify or delete an existing entry:
1. Cl ick the Modify in the entry you want to modify. If you want t o delete the entry, click the Delete.
2. M odi fy the information.
3. Click the Save button.
Click the Enable All button to make all entries enabled Click the Disable All button to make all entries dis abled.
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Click the Delete All button to delete all entries Click the Next button to go to the next page and click the Previous button to return to the previous
page. For example: If you desire t hat the wireless station A with MAC addr ess 00-0A-EB-00- 07-BE is
able to access the device, while all other wireless stations cannot access the device, you should configure the Wireless MAC Address Filtering list by following these steps:
1. Click the Enable button to enable this function.
2. Select the radio button: Deny the stations not specified b y any enabled entries in the list
to access for Filtering Rules.
3. Delete all or disable all entries if there are any entries already.
4. Click the Add New... button and enter the MAC address 00-0A-EB-00-07-BE in the MAC
Address field, enter Wireless Station A in the Description field and select Enabled in the Status pull-down list. Click the Save button.
The filtering rules that configured should be sim ilar to the following list:
Note:
If you enable the function and select the “Deny the stations not specified by any enabled entries in the list to access” for Filtering Rules, and there are not any enabled entries in the list,
thus, no wireless stations can access the device.

4.6.4 Wireless Advanced

Selecting Wireless > Wireless Advanced will allow you to do some advanced s ettings for the device in the following screen shown in Figure 4-22. Since the configurations are almost the same in either operation mode, here we just take that in Range E xtender mode 1 for example.
Figure 4-22 Wireless Advanced
Operation Mode - Shows the current Operation Mode.
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Transmit Power - Specifies the transmit power of the device. You can select High, Middle
or Low which you would lik e. High is the default setting and is recommended.
Beacon Interval - Specifies a value between 40-1000 m illiseconds. The beacons are the
packets sent by the device to synchronize a wireless network. Beacon Interval value determines the time interval of the beacons. T he default value is 100.
RTS Threshold - Specifies the RTS (Request to Send) Threshold. If the packet is larger
than the specified RTS Threshold size, the device will send RTS frames to a particular receiving station and negotiate the sending of a dat a frame. The default value is 2346.
Fragmentation Threshold - This val ue is the maximum size determining whether packets
will be fragmented. Setting the Fragmentat ion Threshold too lo w may result in poor net work performance since excessive packets . 2346 i s the default setting and is recommended.
DTIM Interval - Determines the int erval of the Delivery Traffic Indication Message (DTIM).
You can specify the value between 1-255 Beacon Intervals. The default value is 1, which indicates the DTIM Interval is the same as Beacon Interval.
Enable WMM - WMM function can guarantee the packets with high- priority messages being
transmitted preferentially. It is strongl y recommended enabled.
Enable Short GI - This function is recommended for it will increase the data capacity by
reducing the guard interval time.
Enable AP Isolation - Isolates all connected wireless stations so that wireless stations
cannot access each other through WLAN.

4.6.5 Wireless Stati stics

Selecting Wireless > Wireless Statistics will allow you to see the wireless transmission information in the following screen shown in Figure 4-23.
Figure 4-23 Statistics of the device attached wireless stations
Operation Mode - Shows the current operation mode  MAC Address - Shows the connected wireless station's MAC address  Current Status - The connected wireless station's running status, one of STA-AUTH /
STA-ASSOC / STA-JOINED / WPA / WPA-PSK / WPA2 / WPA2-PSK / AP-UP / AP-DOWN / Disconnected
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Received Packets - packets received by the station  Sent Packets - packets sent by the s tat ion
You cannot change any of the values on this page. To update this page and to show the current connected wireless stations, click t he Refresh button.
If the numbers of connected wireless stations go beyond one page, cl ick the Next button to go to the next page and click the Previous button to ret urn the previous page.
Note:
This page will be refreshed automatically every 5 seconds.

4.6.6 Throughput Monitor

Selecting Wireless > Throughput Monitor will helps to watc h wireless throughput information in the following screen shown in Figure 4-24.
Figure 4-24 Throughput Monitor
Rate - The Throughput unit. Run Time - How long this function is running. Transmit - Wireless transmit rate inform ation. Receive - Wireless receive rate information.
Click the Start button to start wireless throughput monitor. Click the Stop button to stop wireless t hroughput monitor.
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4.7 DHCP

DHCP stands for Dynamic Host Configuration Protocol. The DHCP Server will automatically assign dynamic IP addresses to the computers on the network . This protocol simplifies network management and allows new wireless devices to receive IP addresses automatically without the need to manually assign new IP addresses.
There are two submenus under the DHCP menu (shown as Figure 4-25): DHCP Settings and DHCP Client List. Clicking either of them will enable you to configure the c orres pondi n g f unc tion. The detailed explanations for each submenu are provided below.
Figure 4-25 The DHCP menu

4.7.1 DHCP Setti ng s

Selecting DHCP > DHCP Settings will enable you to set up the Range Extender as a DHCP (Dynamic Host Configur ation Protocol) server, whic h provides the TCP/IP configu ration for all the PCs that are connected to the system on the LAN. The DHCP Server can be configured on the page (shown as Figure 4-27), only when you’ve set the Network LAN type as Static IP in Figure 4-15.
Note:
The DHCP Settings function cannot be configured if you have chosen Smart IP (DHCP) in Network -> LAN, in which situation the device wi ll help you con figure the DHCP automatic ally as you need. The DHCP Settings page will appear as Figure 4-26.
Figure 4-26 DHCP Settings – Disabled
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Figure 4-27 DHCP Settings – Enabled
DHCP Server - Selecting the radio button before Disable/Enable will disable/enable the
DHCP server on your Range Extender. The default setting is Enable. If you disable the Server, you m ust have another DHCP server within your network or else you must manually configure the computer.
Start IP Address - This field specifies the first address in the IP Address pool. 192.168.0.100
is the default start IP address.
End IP Address - This field specifies the l ast address in the IP Address pool. 192.168. 0.199
is the default end IP address.
Address Lease Time - Enter the amount of time for the PC to connect to the Range Extender
with its current assigned dynamic IP address. The time is measured in minutes. After the time is up, the PC will be automatically assigned a new dynamic IP address. The range of the time is 1 ~ 2880 minutes. The default value is 120 minutes.
Default Gateway (optional) - Enter the IP address of the gateway for your LAN. The factory
default setting is 0.0.0.0.
Default Domain (optional) - Enter the domain name of the your DHCP server. You can leave
the field blank.
Primary DNS (optional) - Enter the DNS IP address provided by your ISP. Consult your ISP
if you don’t know the DNS value. The factory default s ett i ng is 0.0.0.0.
Secondary DNS (optional) - Enter the IP address of another DNS server if your ISP provides
two DNS servers. The factory default setting is 0.0.0.0.
Click Save to save the changes.
Note:
To use the DHCP server function of the device, you should conf igure all comput ers in the LAN as "Obtain an IP Address automatically" mode. This function will not take effect until the device reboots.

4.7.2 DHCP Client List

Selecting DHCP > DHCP Client List will enable you to view the Client Name, MAC Address, Assigned IP and Lease Time for each DHCP Client att ached to the device (Figure 4-28).
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Figure 4-28 DHCP Clients List
ID - Here displays the index of the DHCP client.  Client Name - Here displays the name of the DHCP client.  MAC Address - Here displays the MAC address of the DHCP client.  Assigned IP - Here displays the IP address that the Range Extender has allocated to the
DHCP client.
Lease Time - Here displa ys the t ime of the DHCP cl ient leas ed. Before the time is up, DHCP
client will request to renew the lease automatically.
You cannot change any of the values on this page. To update this page and to show the current attached devices, click on the Refresh button.

4.8 System Tools

System Tools option helps you to optimize the configuration of your device. You can upgrade the
Range Extender to the latest version of firmware as well as backup or restore the Range Extender’s configuration files. It’s suggested that you change the default password to a more secure one because it controls access to the devic e’s web-based management page. Besides, you can find out what happened to the system in Syst em Log.
There are six submenus under the System Tools menu (shown as Figure 4-29): Firmware Upgrade, Factory Defaults, Backup & Restore, Reboot, Password, and System Log. Clicking any of them will enable you to configure the corresponding func tion. The detailed ex planati ons for each submenu are provided below.
Figure 4-29 The System Tools menu

4.8.1 Firmware Upgrade

Selecting System Tools > Firmware Upgrade allows you to upgrade the latest version of firmware for the device on the screen shown in Figure 4-30.
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Figure 4-30 Firmware Upgrade
New firmware versions are posted at http://www.tp-link.com
Firmware Version - Here displays the current firmware version. Hardware Version - Here displays the current hardware version. The hardware version of the
upgrade file must accord with the current hardware version.
Note:
1. There i s no need to upgrade the firmware unless the new firmware has a new feature you want to use. However, when experiencing problems caused by the device itself, you can try to upgrade the firmware.
2. Before upgrading the device’s firmware, you should write down some of your customized settings to avoid losing important configuration settings of device.
To upgrade the device's firmware, follow these instructions:
1. Download a more recent firmware upgrade file from the TP-LINK website (http://www.tp-link.com
2. Enter the path name or click Browse… to select the downloaded file on the computer into the File blank.
3. Click Upgrade.
Note:
Do not turn off the device or press the Reset button while the firmware is being upgraded. The device will reboot after the Upgrading has been f inished.
).
and can be downloaded for free.

4.8.2 Factory Defaults

Selecting System Tools > Factor y Default allows you to restore the factory default settings for the device on the screen shown in Figure 4-31.
Figure 4-31 Restore Factory Defaults
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Click Restore to reset all configuration settings to their default values.
Default User Name: adm i n
Default Password: admin
Default IP Address: 192.168.0.254
Default Subnet Mask: 255.255.255.0
Note:
Any settings you have saved will be lost when the default settings are restored.

4.8.3 Backup & Restore

Selecting System Tools > Backup & Restore allows you to save all configuration settings to your local computer as a file or restore the device's configuration on the screen shown in Figure 4-32.
Figure 4-32 Save or Restore the Configuration
Click Backup to save all configuration settings to your local computer as a file.
To restore the device's configuration, follow these in str u ctions:
Click Browse… to find the configuration file which you want to restore.
Click Restore to update the configuration with the file whose path is the one you have input or
selected in the blank.
Note:
The current configuration will be covered with the uploading configurat ion file. Wrong proces s will lead this device unmanaged. The restoring process lasts for 20 seconds and this device will restart automatically then. Keep the power of this device on during the process, in case of any damage.

4.8.4 Reboot

Selecting System Tools > Reboot allows you to reboot the device on the screen shown in Figure 4-33.
Figure 4-33 Reboot the device
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Click the Reboot button to reboot the device. Some settings of the device will take effect only after rebooting, which include:
Change LAN IP Address (System will reboot automatically).
Change the Wireless configurations.
Change the Web Management P ort.
Upgrade the firmware of the device (system will reboot automatic ally).
Restore the device's s ettings to factory defaults (system will reboot autom atically).
Update the configuration with a file (system will reboot automatically).

4.8.5 Password

Selecting System Tools > Password allows you t o change the factory default user name and password of the device on the screen shown in Figure 4-34.
Figure 4-34 Password
It is strongly recommended that you change the factory defaul t user name and password of the device. All users who try to access the device's web-based management page or Quick Setup will be prompted for the device's user name and password.
Note:
The new user name and password must not exceed 14 characters in length and mus t not include any spaces. Enter the new Password twice to confi rm it.
Click Save when finished. Click Clear All to clear all.

4.8.6 System Log

Selecting System Tools > System Log allows you to query the Logs of the device on the screen shown in Figure 4-35.
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Figure 4-35 System Log
The device can keep logs of all traffic. You can query the logs to find what happened to the device.
Log Type - By selecting the log type, only logs of this type will be shown. Log Level - By selecting the log level, only logs of this level will be shown.
Click the Refresh button to show the lat est log list. Click the Save Log button to save all the logs i n a txt file. Click the Clear Log button to delete all the logs from t he system permanently, not just from the
page. Click the Next button to go to the next page, or click the Previous button return to the previous
page.
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Appendix A: Factory Defaults

Item Default Value
Common Default Settings
Username admin
Password admin
IP Address 192.168.0.254
Subnet Mask 255.255.255.0
Domain http://tplinkextender.net
Wireless
SSID TP-LINK_Extender_XXXXXX
Wireless Security Disabled
Wireless MAC Address Filtering Disabled
Note:
The default SSID is TP-LINK_Extender_XXXXXX (XXXXXX indicates the last unique six characters of each device’s MAC address). This value is case-sensitive.
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Appendix B: Troubleshooting

T1. How do I restore my Range Extender’s configuration to its factory default settings?
There are TWO methods available to restore the fac tory defaults. Method 1: With the Range Extender TL-WA850RE powered on, use a pin to press and hold the RESET
button on the rear panel for more than 8 seconds before releasing it.
Method 2: Get logged in to the web-based management page of TL-WA850RE, then go to “System
Tools -> Factory Defaults” and click “Restore”.
Note:
Once the Range Extender is reset, the current configuration settings will be los t and you will need to reconfigure it.
T2. What can I do if I forget my password?
1) Restore the Range Extender’s configuration to its factory default settings. If you don’t
know how to do that, please refer to previous T1;
2) Use the default user name and password: admin, admin;
3) Try to reconfigure your Range Extender by following the instructions of this UG.
T3. What can I do if I cannot access the web-based configuration page?
1) Check to verify all the connections (either wireless or wired ones) are proper. If yes,
please proceed to the next step; otherwise, c heck the connections again.
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2) Try to obtain an IP address and gateway; if succeed, ope n your web-browser, enter th e
default domain http://tplinkextender.net in the address field and get logged in. If you are unable to log in, please RESET the device, and then use the default IP address to get into the web-based configuration page, reco nfigure the device.
3) Feel free to contact our technical support, i f the problem still persists.
T4. How can I know that my wireless signal has been repeated and boosted by
TL-WA850RE?
An easy way is to compare the signal strength of your target wireless network (symbolized by its SSID), with TL-WA850RE in operation vs. out of operation. Before comparison, you’d better make sure your computer can obtain an I P address from your targe t wireless network and thus access the Internet, either via TL-WA850RE or withou t.
T5. Will the Range Extender work if I connect th e ETHERNET port of it to the router via
Ethernet cable?
Sorry, it won’t work. The Range Extender is designed to connect wirelessly to the router, while the ETHERNET port is designed to connect with a wired device, like Internet TV, Gaming console, DVR and so on.
T6. Why does the wireless transmission rate speed down, while the wireless signal is
stronger after repeated by TL-WA850RE?
In compliance with the wireless transmission protocol, all the Range Extender devices are set to work in half-duplex instead of full-duplex mode. In ot her words , the Range Ext ender has to process one-way communication between your root Wireles s router (or AP) and the terminal clients; so the transmission time will be doubl e-incr eased, whil e the speed wi ll be decreas ed. TP-LINK recommends that you connect to the Range Extender when your home network connection is poor, or when you want a larger wireless coverage to eliminate “dead zones”.
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Appendix C: Specifications

General
Standards and Protocols IEEE 802.3, 802.3u, 802.11n, 802.11b and 802.11g, TCP/IP, DHCP Safety & Emission CE
Ports One 10/100M Auto-Negotiation LAN RJ45 port
Wireless
Frequency Band 2.412~2.462GHz
11nup to 300MbpsAutomatic
Radio Data Rate
Frequency Expansion DSSS (Direct Sequence Spread Spectrum) Modulation DBPSK, DQPSK, CCK, OFDM, 16-QAM, 64-QAM Security WEP, WPA-PSK, WPA2-PSK
Sensitivity @PER
Physical and Environment
Working Temperature
Working Humidity
Storage Temperature
11g54/48/36/24/18/12/9/6MAutomatic 11b11/5.5/2/1MAutomatic
270M: -68dBm@10% PER 108M: -68dBm@10% PER; 54M: -68dBm@10% PER 11M: -85dBm@8% PER; 6M: -88dBm@10% PER 1M: -90dBm@8% PER
0~40 (32~104)
10% ~ 90% RH, Non-condensing
-40~70(-40~158)
Storage Humidity
5% ~ 95% RH, Non-condensing
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Appendix D: Glossary

802.11b - The 802.11b standard specifies a wireless networking at 11 Mbps using
direct-sequence spread-spectrum (DSSS ) technology and operating in the unlicensed radio spectrum at 2.4GHz, and WEP encryption for security. 802.11 b networks are also ref erred to as Wi-Fi networks.
802.11g - specification for wireless networking at 54 Mbps using direct-sequence
spread-spectrum (DSSS) technology, using OFDM modulation and operating in the unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b devices, and WEP encryption for security.
802.11n - 802.11n b uilds upon previous 802.11 standards by adding MIMO (multiple-input
multiple-output). MIMO uses multiple transmitter and receiver antennas to allow for increased data throughput via spatial multiplexing and increased range by exploiting the spatial diversity, perhaps through coding schemes like Alamouti coding. The E nhanced Wireless Consortium (EWC) was formed to help accelerate the IEEE 802.11n development process and promote a technology specification for interoperabili ty of next-generation wireless loc al area networking (WLAN) products.
Access Point (Range Extender) - A wireless LAN transceiver or "base station" that can
connect a wired LAN to one or many wireless devi c es. Acc ess point s c an als o bridge t o eac h other.
DNS (Domain Name System) – An Internet Service that translates the names of websites into
IP addresses.
Domain Name - A descriptive name for an address or group of addresses on the Internet.  DoS (Denial of Service) - A hacker attack designed to prevent your computer or network from
operating or communicating.
DSL (Digital Subscriber Line) - A technology that allows data to be sent or received over
existing traditional phone lines.
ISP (Internet Service Provider) - A c ompany t hat provides access to the Internet.  MTU (Maxim um Transmission Unit) - The size in byt es of the largest packet that can be
transmitted.
SSID - A Service Set Identification is a thirty-two character (maximum) alphanumeric key
identifying a wireless local area network. For the wireless devices in a network to communicate with each other, all devices must be conf igured with the same SSID. This is typically the configuration parameter for a wir eless PC card. It corresponds to the ESSID in the wireless Access Point and to the wireless network name.
WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a 64-bi t or 128-bit or
152-bit shared key algorithm, as described in the IE EE 802.11 standard.
Wi-Fi –A trademark of the Wi-Fi Alliance and the brand name for products using the IEEE
802.11 family of standards.
WLAN (Wireless Local Area Network) - A group of computers and associated devices
communicate with each other wirelessly, whi ch network serving users are limited in a local area.
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WPA (Wi-Fi Protected Access) - WPA is a security technology for wireless networks that
improves on the authentication and encryption features of WEP (Wired Equivalent Privacy). In fact, WPA was developed by the networking industry in response to the shortcomings of WEP. One of the key technologies behind WPA is the Temporal Key Integrit y Prot ocol (TKI P). TKI P addresses the encryption weaknesses of WEP. Another key component of WPA is built-in authentication that WEP does not offer. With this feature, WP A provides roughly compar able security to VPN tunneling with WEP, with the benefit of easier admini strat ion and use. Thi s is similar to 802.1x support and requires a RADIUS server in order to implement. The Wi-Fi Alliance will call this, WPA-Enterprise. One variation of WPA is called WPA Pre Shared Key or WPA-Personal for short - this provides an authentication alternative to an expensive RADIUS server. WPA-Personal is a simplified but still powerful form of WPA most suitable for home Wi-Fi networking. To use WPA-Personal, a person sets a static key or "passphrase" as with WEP. But, using TKIP, WPA-Personal automatically changes the keys at a preset time interval, making it much more difficult for hackers to find and exploit them . The Wi-Fi Alliance will call this, WPA-Personal.
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