D-Link reserves the right to revise this publication and to make changes in the content hereof without obligation to notify
any person or organization of such revisions or changes.
Trademarks
D-Link and the D-Link logo are trademarks or registered trademarks of D-Link Corporation or its subsidiaries in the United
States or other countries. All other company or product names mentioned herein are trademarks or registered trademarks
of their respective companies.
All rights reserved. This publication may not be reproduced, in whole or in part, without prior expressed written permission
from D-Link Corporation, Inc.
iD-Link DWR-921 User Manual
FCC Regulations
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, and (2) this device must accept any interference received, including interference that may cause undesired operation.
This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
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 o and on, the user is encouraged to try to correct 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 dierent from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Changes or modications not expressly approved by the party responsible for compliance could void the user‘s authority to operate the equipment.
The antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
This device complies with FCC radiation exposure limits set forth for an uncontrolled environment. In order to avoid the possibility of exceeding
the FCC radio frequency exposure limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal operation.
iiD-Link DWR-921 User Manual
Table of Contents
Table of Contents
Preface ................................................................................. i
Trademarks ...................................................................................... i
FCC Regulations ............................................................................ ii
Note: Using a power supply with a dierent voltage rating than the one included with the DWR-921 will cause damage and void the warranty for
this product.
System Requirements
• A compatible (U)SIM card with service.*
• Computer with Windows, Mac OS, or Linux-based operating system with an installed Ethernet adapter
• Internet Explorer 6 or Firefox 7 or above (for conguration)
*Subject to services and service terms available from your carrier.
1D-Link DWR-921 User Manual
Section 1 - Product Overview
Introduction
The D-Link 4G LTE Router allows users to access worldwide mobile broadband networks. Once connected, users can transfer
data, stream media, and send SMS messages. Simply insert your UMTS/HSUPA SIM card, and share your 3G/4G Internet
connection through a secure 802.11n wireless network or using any of the four 10/100 Ethernet ports.
Keep your wireless network safe with WPA/WPA2 wireless encryption. The DWR-921 utilizes dual-active rewalls (SPI and
NAT) to prevent potential attacks across the Internet, and includes MAC address ltering to control access to your network.
The 4G LTE Router can be installed quickly and easily almost anywhere. This router is great for situations where an
impromptu wireless network must be set up, or wherever conventional network access is unavailable. The DWR-921 can
even be installed in buses, trains, or boats, allowing passengers to check e-mail or chat online while commuting.
2D-Link DWR-921 User Manual
Section 1 - Product Overview
Hardware Overview
Rear Panel
WAN Port
LAN Ports
PortFunction
LAN Ports
(RJ-45)
WAN Port
(RJ-45)
SIMAccepts a standard (U)SIM card for 3G/4G connectivity.
PowerConnects to the included power adapter.
Power SwitchTurns the device on or o.
Connects to a network device such as a desktop or notebook
computer through an Ethernet cable.
Connects to a DSL/Cable modem or router through an Ethernet
cable.
SIM Card SlotPower Switch
Power Connector
3D-Link DWR-921 User Manual
Section 1 - Product Overview
Hardware Overview
Front Panel
WAN LAN1 LAN2 LAN3 LAN4
Status 3G 4G SMS WLAN
Signal Strength
Button NameFunction
ResetPress this button with an unfolded paperclip to reset
WPSPress this button to initiate a new WPS connection.
Reset ButtonWPS Button
the device.
Refer to “Wi-Fi Protected Setup” on page 29 for more
details.
4D-Link DWR-921 User Manual
Section 1 - Product Overview
LED NameFunction
Hardware Overview
LEDs
Signal
Strength
StatusBlinking Green: Device is working
WANSolid Green: Ethernet connection has been established
LAN 1-4Solid Green: Ethernet connection has been established
StatusBlinking Green: Device is working
3GSolid Green: UMTS/HSDPA/HSUPA connection has been established
4GSolid Green: LTE connection has been established
SMSSolid Green: SMS storage is full
Blinking Red: No SIM card / signal or unveried PIN code
Solid Red: Signal strength is at level one (weak)
Solid Amber: Signal strength is at level two or three (medium)
Solid Green: Signal strength is at level four or ve (strong)
Blinking Green: Data is being transferred
Blinking Green: Data is being transferred
Blinking Green: Data is being transferred via 3G
Blinking: Data is being transferred via 4G
Blinking Green: There is an unread SMS message
WLANSolid Green: WLAN is active and available
Blinking Green: Data is being transferred over the WLAN
5D-Link DWR-921 User Manual
Section 2 - Installation
Installation
This section will guide you through the installation process. Placement of the router is very important. Do not place the router in an enclosed area
such as a closet, cabinet, or in an attic or garage.
Connect to Your Network
1. Ensure that your DWR-921 4G LTE Router is disconnected and powered o.
2. Insert a standard (U)SIM card into the SIM card slot on the back of the router as indicated by the SIM card logo next to the slot. The gold contacts
should face downwards.
Caution:Always unplug/power down the router before installing or removing the SIM card. Never insert or remove the SIM card while the router
is in use.
3. Insert your Internet/WAN network cable into the WAN port on the back of the router.
Note: The 3G/4G connection can also be used as a backup WAN. Once a backup is congured, the router will automatically use 3G for the Internet
connection if the Ethernet WAN is not available.
4. Insert the Ethernet cable into the LAN Port 1 on the back panel of the DWR-921 4G LTE Router and an available Ethernet port on the network
adapter in the computer you will use to congure the router.
Note: The DWR-921 4G LTE Router LAN Ports are Auto-MDI/MDIX, so both patch and crossover Ethernet cables can be used.
5. Connect the power adapter to the socket on the back panel of your DWR-921 4G LTE Router. Plug the other end of the power adapter into a
wall outlet or power strip and turn the device on.
a. The Status LED will light up to indicate that power has been supplied to the router.
b. The LEDs on the front panel will ash on and o as the DWR-921 4G LTE Router performs initialization and Internet connection processes.
c. After a few moments, if a connection has been established, the following LEDs will turn solid green: Power, Status, WAN, WLAN, and any LAN
Port LEDs that are connected computers or other devices.
6D-Link DWR-921 User Manual
Section 2 - Installation
Wireless Installation Considerations
The DWR-921 can be accessed using a wireless connection from anywhere within the operating range of your wireless network. Keep in mind that
the quantity, thickness, and location of walls, ceilings, or other objects that the wireless signals must pass through may limit the range of the wireless
signal. Ranges vary depending on the types of materials and background RF (radio frequency) noise in your home or oce. The key to maximizing
the wireless range is to follow these basic guidelines:
1. Minimize the number of walls and ceilings between the D-Link router and other network devices. Each wall or ceiling can reduce your adapter’s
range from 3 to 90 feet (1 to 30 meters).
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (0.5 meters), at a 45-degree angle appears to be almost 3 feet
(1 meter) thick. At a 2-degree angle it looks over 42 feet (14 meters) thick. Position devices so that the signal will travel straight through a wall
or ceiling (instead of at an angle) for better reception.
3. Try to position access points, wireless routers, and computers so that the signal passes through open doorways and drywall. Materials such as
glass, metal, brick, insulation, concrete, and water can aect wireless performance. Large objects such as sh tanks, mirrors, le cabinets, metal
doors, and aluminum studs may also have a negative eect on range.
4. If you are using 2.4 GHz cordless phones, make sure that the 2.4 GHz phone base is as far away from your wireless device as possible. The base
transmits a signal even if the phone is not in use. In some cases, cordless phones, X-10 wireless devices, and electronic equipment such as ceiling
fans, uorescent lights, and home security systems may dramatically degrade wireless connectivity.
7D-Link DWR-921 User Manual
Section 3 - Conguration
Conguration
This section will show you how to congure your new D-Link mobile router using the web-based conguration utility.
Web-based Conguration Utility
To access the conguration utility, open a web-browser such as Internet Explorer and enter
the IP address of the router (192.168.0.1 by default).
To log in to the conguration utility, enter admin as the username, and then enter the password.
By default, the password is blank.
If you get a Page Cannot be Displayed error, please refer to the Troubleshooting section for
assistance.
The conguration utility will open to the STATUS > DEVICE INFO page. You can view dierent
conguration pages by clicking on the categories at the top of the screen (SETUP/ADVANCED/
TOOLS/STATUS/SUPPORT), and then selecting a conguration page from the bar on the left side.
The following pages will describe each section in detail, starting with the SETUP pages.
8D-Link DWR-921 User Manual
Section 3 - Conguration
Setup
The SETUP pages allow you to congure your Internet and wireless settings, as well as manage
your SMS inbox. To view the Setup conguration pages, click on SETUP at the top of the screen.
Internet
The Internet page allows you to congure how your router connects to the Internet. There are
two ways to set up your Internet connection.
You can click on the Internet Connection Setup Wizard button to start a wizard that will guide
you through setting up your Internet settings.
If you want to manually congure your settings, click Manual Internet Connection Setup and
skip to “Manual Internet Connection Setup” on page 12.
Internet Connection Setup Wizard
This wizard will guide you through a step-by-step process to congure your D-Link router to
connect to the Internet.
Click Next to continue.
Note: While using the wizard, you can click Prev to go back to the previous step, or you can
click Cancel to close the wizard.
9D-Link DWR-921 User Manual
Section 3 - Conguration
Create a new password and then click Next to continue.
Select your time zone from the drop-down box and then click Next to continue.
Select the Internet connection type you use. The connection types are explained on the
following page. If you are unsure which connection type you should use, contact your Internet
Service Provider (ISP).
Click Prev to go back to the previous page or click Cancel to close the wizard.
Note: The DWR-921 has a WAN Failover feature that allows the router to switch to a 3G/4G
connection if the WAN connection is down or unavailable. To congure this feature,
please refer to “Internet Connection” on page 12.
10D-Link DWR-921 User Manual
Section 3 - Conguration
The subsequent conguration pages will dier depending on the selection you make on this page.
onnection
(Dynamic IP Address):
Username / Password
Connection (PPPoE):
Username / Password
Connection (PPTP):
Username / Password
Connection (L2TP):
3G/4G Connection:
Static IP Address
Connection:
Choose this if your Internet connection automatically provides you with an IP Address. Most cable modems use
this type of connection. See “Dynamic IP (DHCP)” on page 14 for information about how to congure this type of
connection.
Choose this option if your Internet connection requires a username and password to connect. Most DSL modems
use this style of connection. See “PPPoE” on page 15 for information about how to congure this type of connection.
Choose this option if your Internet connection requires Point-to-Point Tunneling Protocol (PPTP). See “PPTP” on
page 17 for information about how to congure this type of connection.
Choose this option if your Internet connection requires Layer 2 Tunneling Protocol (L2TP). See “L2TP” on page 19 for
information about how to congure this type of connection.
Choose this connection if you have installed a SIM card into the DWR-921. See “3G/4G” on page 20 for information
about how to congure this type of connection.
Choose this option if your Internet Service Provider provided you with IP Address information that has to be
manually congured. See “Static IP” on page 13 for information about how to congure this type of connection.
After entering the requested information,click Next to continue.
Note: If you are not sure what connection type to use or what settings to enter, check with your Internet service provider.
This completes the Internet Connection Setup Wizard. Click Connect to save your changes
and reboot the router.
11D-Link DWR-921 User Manual
Section 3 - Conguration
Manual Internet Connection Setup
To set up your Internet connection manually, click Manual Internet Connection Setup.
Internet Connection
Several dierent Internet Connection types can be selected depending upon the specications of your Internet Service Provider (ISP). You can also
set up the Auto-Backup feature, which allows you to use a 3G/4G connection for your Internet connection if your main connection fails.
y Internet
Connection is:
Host Name:
Auto-Backup:
Internet Host:
Select the Internet Connection type specied by your Internet
Service Provider (ISP). The corresponding settings will be
displayed below. Please see the following pages for details on
how to congure these dierent connection types.
If the Internet Host you are using for the Auto-Backup feature
requires you to enter a Host Name, enter it here. In most cases,
you may leave this blank.
When this box is checked, the router will switch over to a
3G/4G connection if the Internet Host (specied below) is
unreachable.
Enter an IP address for the router to use to check if it is
connected to the Internet. If Auto-Backup is enabled and the
IP address cannot be reached, the router will switch over to a
3G/4G connection.
12D-Link DWR-921 User Manual
Section 3 - Conguration
Static IP
Choose this Internet connection if your ISP assigns you a static IP address. After modifying any settings, click Save Settings to save your changes.
ddress:
Subnet Mask:
Default Gateway:
Primary DNS Server:
Secondary DNS Server:
MTU:
MAC Address:
Enter the IP address assigned to your network connection.
Enter the subnet mask.
Enter the default gateway.
Enter the primary DNS server.
Enter the secondary DNS server.
You may need to change the Maximum Transmission Unit
(MTU) for optimal performance. The default value is 1500.
The default MAC Address is set to the Internet port’s physical
interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address
unless required by your ISP. You can use the Clone Your PC’s MAC Address button to replace the Internet port’s MAC
address with the MAC address of your Ethernet card.
13D-Link DWR-921 User Manual
Section 3 - Conguration
Dynamic IP (DHCP)
This section will help you to obtain IP Address information automatically from your ISP. Use this option if your ISP didn’t provide you with IP Address
information and/or a username and password. After modifying any settings, click Save Settings to save your changes.
rimary DNS Server:
Secondary DNS Server:
MTU (Maximum
Transmission Unit):
MAC Address:
Auto-reconnect:
(Optional) Fill in with IP address of primary DNS server.
(Optional) Fill in with IP address of secondary DNS server.
You may need to change the Maximum Transmission Unit
(MTU) for optimal performance. The default value is 1500.
The default MAC Address is set to the Internet port’s physical
interface MAC address on the Broadband Router. It is not
recommended that you change the default MAC address
unless required by your ISP. You can use the Clone Your PC’s MAC Address button to replace the Internet port’s MAC
address with the MAC address of your PC.
This feature enables this product to renew the WAN IP address
automatically when the lease time has expired.
14D-Link DWR-921 User Manual
Section 3 - Conguration
PPPoE
Choose this Internet connection if your ISP provides you with a PPPoE account. After modifying any settings, click Save Settings to save your changes.
sername:
Password:
Verify Password:
The username/account name that your ISP provides to you for
PPPoE dial-up.
Password that your ISP provides to you for PPPoE dial-up.
Fill in with the same password in Password eld.
Service Name:
IP Address:
Primary DNS Server:
Secondary DNS Server:
MAC Address:
Maximum Idle Time:
(Optional) Fill in if provided by your ISP.
Fill in if provided by your ISP. If not, keep the default value.
(Optional) Fill in if provided by your ISP. If not, keep the default
value.
(Optional) Fill in if provided by your ISP. If not, keep the default
value.
MAC address of WAN interface. You can also copy MAC address
of your PC to its WAN interface by clicking the Clone button.
The amount of time of inactivity before disconnecting an
established PPPoE session. Set it to zero or enable Autoreconnect will disable this feature.
15D-Link DWR-921 User Manual
Section 3 - Conguration
aximum Transmission
Unit (MTU):
Auto-reconnect:
The default setting of PPPoE is 1492.
The device will automatically reconnect to your PPPoE
connection automatically.
16D-Link DWR-921 User Manual
Section 3 - Conguration
PPTP
Choose this Internet connection if your ISP provides you with a PPTP account. After modifying any settings, click Save Settings to save your changes.
ddress Mode:
PPTP IP Address:
PPTP Subnet Mask:
PPTP Gateway IP Address:
Choose Static IP only if your ISP assigns you an IP address.
Otherwise, please choose Dynamic IP.
Enter the information provided by your ISP.
(Only applicable for Static IP PPTP.)
Enter the information provided by your ISP.
(Only applicable for Static IP PPTP.)
Enter the information provided by your ISP.
(Only applicable for Static IP PPTP.)
PPTP Server IP Address:
Username:
Password:
Verify Password:
Reconnect Mode:
IP address of PPTP server.
User/account name that your ISP provides to you for PPTP dialup.
Password that your ISP provides to you for PPTP dial-up.
Re-enter your password for verication.
Choose Always-on when you want to establish PPTP
connection all the time. If you choose Connect-on-demand,
the device will establish a PPTP connection when local users
want to surf Internet, and disconnect if there is no trac after
the time period dened by the Maximum Idle Time setting.
17D-Link DWR-921 User Manual
Section 3 - Conguration
aximum Idle Time:
The time of no activity to disconnect your PPTP session. Set it
to zero or choose Always-on to disable this feature.
18D-Link DWR-921 User Manual
Section 3 - Conguration
L2TP
Choose this Internet connection if your ISP provides you with an L2TP account. After modifying any settings, click Save Settings to save your changes.
ddress Mode:
Choose Static IP only if your ISP assigns you an IP address.
Otherwise, please choose Dynamic IP.
L2TP IP Address:
L2TP Subnet Mask:
L2TP Gateway IP Address:
L2TP Server IP Address:
Username:
Password:
Verify Password:
Reconnect Mode:
Enter the information provided by your ISP.
(Only applicable for Static IP L2TP.)
Enter the information provided by your ISP.
(Only applicable for Static IP L2TP.)
Enter the information provided by your ISP.
(Only applicable for Static IP L2TP.)
IP address of L2TP server.
User/account name that your ISP provides to you for L2TP dialup.
Password that your ISP provides to you for L2TP dial-up.
Fill in with the same password in Password eld.
Choose Always-on when you want to establish L2TP
connection all the time. Choose Connect-on-demand the
device will establish L2TP connection when local users want to
surf Internet, and disconnect if no trac after time period of
Maximum Idle Time.
Maximum Idle Time:
The time of no activity to disconnect your L2TP session. Set it
to 0 or choose Always-on to disable this feature.
19D-Link DWR-921 User Manual
Section 3 - Conguration
3G/4G
Choose this Internet connection if you already use a SIM card for 3G/4G Internet service from your mobile service company. The elds here may
not be necessary for your connection. The information on this page should only be used if required by your service provider. After modifying any
settings, click Save Settings to save your changes.
refer Service Type:
Choose whether the DWR-921 should only use 4G networks,
3G networks, or use Auto Mode to automatically select a
network.
Account/Prole Name:
Country/Telecom:
Username:
Password:
Dialed Number:
Authentication:
APN:
Pin Code:
Reconnect Mode:
Fill in a name to identify the following 3G/4G conguration.
Select your country and telecom to automatically ll in some
of the required settings.
(Optional) Fill in only if requested by ISP.
(Optional) Fill in only if requested by ISP.
Enter the number to be dialed.
Select PAP, CHAP, or Auto detection. The default authentication
method is Auto.
(Optional) Enter the APN information.
Enter the PIN associated with your SIM card.
Select Auto or Manual to decide whether the routher should
reconnect to your 3G/4G network automatically or manually.
Maximum Idle Time:
Set the maximum time your connection can be idle before
disconnecting. Set it to 0 or choose Auto in Reconnect Mode
to disable this feature.
20D-Link DWR-921 User Manual
Section 3 - Conguration
rimary DNS Server:
Secondary DNS Server:
Keep Alive:
Bridge Ethernet Ports:
Roaming:
DNS Check:
(Optional) Fill in if provided by your ISP. If not, keep the default
value.
(Optional) Fill in if provided by your ISP. If not, keep the default
value.
Select Disable or Use Ping depending on the settings required
by your ISP. If you select Use Ping, set the ping interval and the
IP address to ping.
Activate this feature to use the Ethernet WAN port as an
additional LAN port.
Enabling this option will allow you to connect when roaming.
Note: Roaming connections may incur additional fees from
your service provider.
Enabling this will send periodic DNS checks to make sure your
connection is alive, and if the check fails, it will restart your 3G
connection to resume connectivity.
NAT Disable:
Enabling this option will disable the NAT function of the DWR921, allowing it to act as a link for your devices to your Internet
connection, but without routing functions.
21D-Link DWR-921 User Manual
Section 3 - Conguration
Wireless Settings
This section will help you to manually congure the wireless settings of your router. Please
note that changes made on this section may also need to be duplicated on your wireless
devices and clients.
The Wireless Settings page allows you to congure how your router connects to the Internet.
There are several ways to set up your wireless connection.
You can click on the Wireless Connection Setup Wizard button to start a wizard that will guide
you through setting up your wireless settings.
If you want to manually congure your settings, click the Manual Wireless Connection Setup
button and skip to “Manual Wireless Connection Setup” on page 24.
You can also set up a wireless connection to a device automatically, or congure your router
automatically through Windows by clicking the Wi-Fi Protected Setup button. This is described
in “Wi-Fi Protected Setup (WPS)” on page 29.
Wireless Connection Setup Wizard
This wizard will guide you through a step-by-step process to congure your D-Link router’s
wireless .
Click Next to continue.
Note: While using the wizard, you can click Prev to go back to the previous page or you can
click Cancel to close the wizard.
22D-Link DWR-921 User Manual
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