D Link WA121A1 User Manual
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Table of Contents
Table of Contents
Product Overview ......................................................................3
Package Contents ...........................................................................................3
System Requirements .................................................................................... 3
Introduction ...................................................................................................... 4
Features ..............................................................................................................5
Hardware Overview ........................................................................................ 6
Installation ..................................................................................7
Getting Started ................................................................................................7
Remove Existing Installations ............................................................ 7
Disable Other Wireless Adapters ......................................................8
Wireless Installation Considerations ......................................................10
Adapter Installation ......................................................................................11
®
Protected Setup (WPS) ...........................................................17
Wi-Fi
Conguration .......................................................................... 20
D-Link Wireless Connection Manager ...................................................20
Wireless Networks ................................................................................21
My Wireless Networks .........................................................................25
Add Prole .......................................................................................26
Modify Prole..................................................................................27
Support ....................................................................................................28
About ........................................................................................................29
Wireless Security ..................................................................... 33
What is WPA? ...................................................................................................33
Congure WPA/WPA2 Passphrase ...........................................................34
Using the D-Link Wireless Connection Manager ......................34
Using Windows
Using Windows Vista
Using the Windows
Congure WPA/WPA2 (RADIUS) ...............................................................43
Using the D-Link Wireless Connection Manager ......................43
®
7 .................................................................................36
®
..........................................................................39
®
XP Utility .........................................................41
Troubleshooting ..................................................................... 44
Windows® 7 Troubleshooting ....................................................................48
Wireless Basics ........................................................................ 50
Wireless Modes ..............................................................................................54
Networking Basics .................................................................. 55
Check your IP address ..................................................................................55
Windows
Windows 7/Vista
Statically Assign an IP address ..................................................................56
Windows
Windows 7/Vista
®
XP/2000 Users ...................................................................55
®
XP/2000 Users ...................................................................56
®
Users ......................................................................55
®
Users ......................................................................57
Connect to a Wireless Network ............................................ 30
Using Windows® 7 ..........................................................................................30
Connect to a Wireless Network ............................................ 31
Using Windows Vista® ...................................................................................31
Using Windows
®
XP .......................................................................................32
Technical Specications ........................................................ 58
Contacting Technical Support .............................................. 59
Warranty ................................................................................... 60
Registration ............................................................................. 66
2D-Link DWA-121 User Manual
Section 1 - Product Overview
D-Link DWA-121 Wireless N 150 Pico USB Adapter
Manual and Software on CD
Quick Installation Guide
Product Overview
Package Contents
System Requirements
• A computer or laptop with an available USB 2.0 port
• Windows
• CD-ROM Drive
• 300MHz processor and at least 64MB of RAM
• A 802.11n or 802.11g access point or wireless router
®
7, Vista®, XP (Service Pack 2)
3D-Link DWA-121 User Manual
Section 1 - Product Overview
Introduction
The DWA-121 Wireless N 150 Pico USB Adapter is a convenient wireless connectivity solution for desktop or notebook PCs. Instead of stringing
Ethernet cables to your PC or dismantling your desktop computer case, the DWA-121 can enable 802.11n wireless connectivity by simply utilizing
your desktop or notebook PC’s USB port.
Powered by Wireless N 150 technology, the DWA-121 provides a faster wireless connection and superior reception than 802.11g*. The DWA-121 is
designed for use in bigger homes and for those that demand higher bandwidth networking. Maximize wireless performance by connecting this
™
USB Adapter to a Wireless N
to prevent outside intrusion and protect your personal information from being exposed.
D-Link’s Quick Setup Wizard guides you step-by-step through the installation process. You’ll be able to congure this USB Adapter without having
any diculties. The D-Link Wireless Manager is included with this product to keep track of all your most frequently accessed networks.
Compact in size, robust in speed the DWA-121 Wireless N 150 Pico USB Adapter is great for travel and a convenient solution for providing high
performance wireless connectivity to your desktop or notebook PC. Enjoy the many benets of wireless connectivity today!
router and stay connected from virtually anywhere in the home. This USB Adapter supports WPA and WPA2 encryption
* Maximum wireless signal rate derived from IEEE Standard 802.11g and 802.11n specications. Actual data throughput will vary. Network conditions and
environmental factors, including volume of network traf0c, building materials and construction, and network overhead, lower actual data throughput rate.
Environmental conditions will adversely aect wireless signal range.
4D-Link DWA-121 User Manual
Section 1 - Product Overview
• Compact size for placement anywhere
• Convenience of Plug & Play installation
• Fully 802.11g compatible
• 802.11n compliant
• Powered by the USB port; no external power source required
Features
• USB 2.0 standard
• You can securely connect to a wireless network using WPA/WPA2 (Wi-Fi Protected Access) providing you a much higher level of
security for your data and communication than has previously been available.
• Position the DWA-121 almost anywhere in your workspace to achieve the best reception possible
•
Supports Infrastructure networks via an access point
• User-friendly conguration and diagnostic utilities
* Using a USB 1.1 port will adversely aect throughput.
*
5D-Link DWA-121 User Manual
Section 1 - Product Overview
Hardware Overview
1
1 USB Connector Used to connect the DWA-121 to your computer.
6D-Link DWA-121 User Manual
Section 2 - Installation
Installation
This section will walk you through the installation process. If you have a built-in wireless adapter, please disable it in device manager before installing
your D-Link adapter. Also, if you have previously installed another wireless adapter, please make sure any software is uninstalled.
Getting Started
Before installing your new D-Link wireless adapter, please verify the following:
• Remove any previous installations of wireless adapters
• Disable any built-in wireless adapters
• Verify the settings such as the SSID and security settings of the network(s) you want to connect to
Remove Existing Installations
If you’ve installed a dierent manufacture’s adapter or a dierent model D-Link adapter, make sure the software is uninstalled before installing
the new software. Some utilities may cause a conict with the new software. If you plan to use multiple adapters at dierent times, make sure the
utilities are not set to load when your computer boots up. Windows
To remove any old software:
Windows 7 users: Click Start > Control Panel > Uninstall Programs.
Windows Vista/XP users: Click Start > Control Panel > Add or Remove Programs.
Windows 2000 users: Click Start > Settings > Control Panel > Add or Remove Programs.
®
7, Vista® and XP users may use the built-in wireless utility for all adapters.
7D-Link DWA-121 User Manual
Section 2 - Installation
Disable Other Wireless Adapters
Most newer laptops may include a built-in wireless adapter. To prevent any conicts with the D-Link wireless adapter, it is recommended to disable
the wireless adapter (as well as any unused Ethernet adapters).
From the desktop, right-click on the My Computer icon and select Manage.
Then, click Device Manager. Scroll down the list and click the + sign to the left of Network Adapters.
Right-click the adapter you would like to disable and select Disable.
8D-Link DWA-121 User Manual
Section 2 - Installation
Click Ye s to disable the adapter.
The adapter is now disabled. When disabled, a red X will be displayed.
Disabling the adapter will not remove the drivers. If you would like to use the
adapter, simply right-click it and select Enable.
9D-Link DWA-121 User Manual
Section 2 - Installation
Wireless Installation Considerations
The D-Link wireless adapter lets you access your network using a wireless connection from virtually anywhere within the operating range of your
wireless network. Keep in mind that the number, thickness and location of walls, ceilings, or other objects that the wireless signals must pass
through, may limit the range. Typical ranges vary depending on the types of materials and background RF (radio frequency) noise in your home or
business. The key to maximizing wireless range is to follow these basic guidelines:
1. Keep the number of walls and ceilings between the D-Link adapter and other network devices to a minimum - each wall or ceiling
can reduce your adapter’s range from 3-90 feet (1-30 meters.) Position your devices so that the number of walls or ceilings is
minimized.
2. Be aware of the direct line between network devices. A wall that is 1.5 feet thick (.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. Building Materials make a dierence. A solid metal door or aluminum studs may have a negative eect on range. Try to position
access points, wireless routers, and computers so that the signal passes through drywall or open doorways. Materials and objects
such as glass, steel, metal, walls with insulation, water (sh tanks), mirrors, le cabinets, brick, and concrete will degrade your
wireless signal.
4. Keep your product away (at least 3-6 feet or 1-2 meters) from electrical devices or appliances that generate RF noise.
5. If you are using 2.4GHz cordless phones or X-10 (wireless products such as ceiling fans, lights, and home security systems), your
wireless connection may degrade dramatically or drop completely. Make sure your 2.4GHz phone base is as far away from your
wireless devices as possible. The base transmits a signal even if the phone in not in use.
10D-Link DWA-121 User Manual
Section 2 - Installation
Adapter Installation
Warning: Do NOT install the DWA-121 Wireless N 150 Pico USB Adapter into your computer before installing the driver software from the
D-Link CD.
Turn on the computer and Insert the D-Link DWA-121 Driver CD in the CD-ROM drive.
If the CD Autorun function does not automatically start on your computer, go to Start > Run. In the run box type “D:\autorun.exe” (where D:
represents the drive letter of your CD-ROM drive).
When the autorun screen appears, click Install Drivers.
11D-Link DWA-121 User Manual
Section 2 - Installation
Please select your language from the list and click Next to continue.
The InstallShield Wizard window will appear.
12D-Link DWA-121 User Manual
Section 2 - Installation
Select the new folder or an existing folder that you would like the installation
Wizard to add program icons to and then click Next.
Insert the adapter into an available USB port on your computer.
If the Found New Hardware Wizard appears, click Cancel.
13D-Link DWA-121 User Manual
Section 2 - Installation
Please wait while the installation wizard congures your new software installation.
To manually connect to your wireless network, select Manually connect to a
wireless network and then click Next.
14D-Link DWA-121 User Manual
Section 2 - Installation
To manually connect to your wireless network, select Manually connect to a
wireless network and then click Next.
Enter the network name (SSID) manually. If you enter the SSID incorrectly, you
will be directed to the site survey page. Click Scan to display the site survey page
or click Next to continue.
15D-Link DWA-121 User Manual
Section 2 - Installation
Click the Scan button to display a list of wireless networks (site survey). Click on
the network name (SSID) and click Next.
Click Finish to continue. If you are prompted to reboot your computer, select
Yes, I want to restart my computer now.
16D-Link DWA-121 User Manual
Section 2 - Installation
Wi-Fi® Protected Setup (WPS)
Wi-Fi Protected Setup (WPS) System is designed for easy setup of security-enabled
Wi-Fi networks. It is recommended to have the access point or wireless router
nearby during setup.
For more information on WPS, visit the Wi-Fi Alliance website at www.wi-.org.
To begin the WPS setup, select the option the Use the WiFi Protected Setup (WPS)
wizard for simplied Wireless connection and click Next.
17D-Link DWA-121 User Manual
Section 2 - Installation
Press the WPS button located on the right side of the Router/ Access point until it
is lit and click on the virtual Connect Now button.
Please wait while the Router/ Access point establishes connection.
18D-Link DWA-121 User Manual
Section 2 - Installation
When this screen appears, you have successfully established connectivity. Click
Finish to complete your setup.
Press the WPS button located on the right side of the Router/Access point until
it is lit and click on the virtual Connect Now button.
19D-Link DWA-121 User Manual
Section 3 - Conguration
Conguration
This section will show you how to congure your new D-Link wireless adapter using the D-Link Utility as well as the Windows® XP Zero Conguration
Utility and Vista WLAN Autoconguration.
D-Link Wireless Connection Manager
The D-Link DWA-121 uses the Wireless Connection Manager as the management software. The manager provides the user an easy interface to
change any settings related to the wireless adapter. Clicking on the Wireless Connection Manager icon on the desktop will start the Conguration.
®
If you are using Windows
7, Vista®, or XP, please skip to pages 30, 31 or 32 respectively.
Double-click the Wireless Connection Manager icon on your
desktop.
20D-Link DWA-121 User Manual
Section 3 - Conguration
Wireless Networks
The Wireless Networks (Site Survey) page will display all wireless networks that are available in your area. To connect to a network, simply highlight
the wireless network (SSID) and click Connect.
SSID:
The SSID (Service Set Identier) is the name of the wireless
network.
MAC:
Displays the MAC address of the wireless device.
Signal:
Security:
Channel:
WPS Button:
Refresh Button:
Connect Button:
Activate Button:
Displays the Link Quality of the wireless connection.
If there is a “lock” icon, this means the wireless network is
secure. You must know the encryption key/security settings
to connect.
Displays the channel of the wireless network.
Connect to a wireless network using Wi-Fi Protected Setup.
Refer to the next page.
Rescans for available wireless networks in your area.
Highlight a wireless network and click the Connect button. If
the network is secure, a pop-up window will appear. Enter the
security information to connect (refer to the Wireless Security
section for more information).
Select a wireless network prole from the drop-down menu
and click Activate to connect. Allow up to 30 seconds to
connect.
21D-Link DWA-121 User Manual
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