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Table of Contents Table of Contents Product Overview......................................................................3 Wireless Security..................................................................... 33 Package Contents ........................................................................................... 3 System Requirements .................................................................................... 3 Introduction ................................................................
Section 1 - Product Overview Product PackageOverview Contents D-Link DWA-121 Wireless N 150 Pico USB Adapter Manual and Software on CD Quick Installation Guide System Requirements • A computer or laptop with an available USB 2.0 port • Windows® 7, Vista®, XP (Service Pack 2) • CD-ROM Drive • 300MHz processor and at least 64MB of RAM • A 802.11n or 802.
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*.
Section 1 - Product Overview Features • 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 • 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.
Section 1 - Product Overview Hardware Overview 1 1 USB Connector D-Link DWA-121 User Manual Used to connect the DWA-121 to your computer.
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.
Section 2 - Installation Disable Other Wireless Adapters Most newer laptops may include a built-in wireless adapter. To prevent any conflicts 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.
Section 2 - Installation Click Yes 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.
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.
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).
Section 2 - Installation Please select your language from the list and click Next to continue. The InstallShield Wizard window will appear.
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.
Section 2 - Installation Please wait while the installation wizard configures your new software installation. To manually connect to your wireless network, select Manually connect to a wireless network and then click Next.
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.
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.
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-fi.org. To begin the WPS setup, select the option the Use the WiFi Protected Setup (WPS) wizard for simplified Wireless connection and click Next.
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.
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.
Section 3 - Configuration Configuration This section will show you how to configure your new D-Link wireless adapter using the D-Link Utility as well as the Windows® XP Zero Configuration Utility and Vista WLAN Autoconfiguration. 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.
Section 3 - Configuration 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 Identifier) is the name of the wireless network. MAC: Displays the MAC address of the wireless device. Signal: Displays the Link Quality of the wireless connection.
Section 3 - Configuration Personal Identification Number (PIN) To use the PIN method, select PIN (Personal Identification Number) and click Next. Make sure your access point or wireless router is close by. Write down the number on the screen. Enter this number in your access point or wireless router. Please refer to the manufacture’s manual for instructions. Once you click Next, you will have two minutes to enter this number in your access point or wireless router.
Section 3 - Configuration The adapter will try to establish connectivity to your access point or wireless router. When this screen appears, you have successfully established connectivity. Click Finish to complete your setup.
Section 3 - Configuration 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.
Section 3 - Configuration My Wireless Networks The My Wireless Networks page will allow you to create, edit, and delete wireless network profiles. Every time you connect to a network using the Wireless Networks page, a profile will automatically be created. New Button: Click New to create a new wireless network profile (refer to page 22). Modify: Click Modify to edit a current profile (refer to page 23). Delete: Click Delete to remove a profile. Activate: Click Activate to use a profile.
Section 3 - Configuration Add Profile You may add a new network by clicking the New button from the My Wireless Networks page. Profile Name: Enter a name for your profile (e.g. Home, Office, Coffee Shop). SSID: Enter the SSID of the wireless network. Network Type: Select the network type. If you are connecting to a wireless router or access point, select Infrastructure. (Ad-hoc mode is not supported) Security Type: Select the type of security used.
Section 3 - Configuration Modify Profile You may edit an existing profile by selecting the profile and clicking the Modify button from the My Wireless Networks page. Profile Name: Enter a name for your profile (e.g. Home, Office, Coffee Shop). SSID: Displays the SSID of the network. Network Type: Displays the network type. Security Type: Select the type of security used. Please refer to the Wireless Security section for more information. OK Button: Click OK to save your settings.
Section 3 - Configuration Support If you need help, click the Support button. A panel will appear to the right of the utility which will display information about the utility.
Section 3 - Configuration About The About screen gives you information about the Driver and Utility Versions of the DWA-121.
Section 3 - Configuration Connect to a Wireless Network Using Windows® 7 Windows 7 users may use the built-in wireless utility. If you are using another company’s utility or Windows 2000, please refer to the user manual of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option similar to the Windows 7 utility as seen below. If you receive the Wireless Networks Detected bubble, click on the center of the bubble to access the utility.
Section 3 - Configuration Connect to a Wireless Network Using Windows Vista® Windows Vista users may use the built-in wireless utility. If you are using another company’s utility or Windows 2000, please refer to the user manual of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option similar to the Windows Vista utility as seen below.
Section 3 - Configuration Connect to a Wireless Network Using Windows® XP Windows XP users may use the built-in wireless utility (Zero Configuration Utility). The following instructions are for Service Pack 2 users. If you are using another company’s utility or Windows 2000, please refer to the user manual of your wireless adapter for help with connecting to a wireless network. Most utilities will have a “site survey” option similar to the Windows XP utility as seen below.
Section 4 - Wireless Security Wireless Security This section will show you the different levels of security you can use to protect your data from intruders. The DWA-121 offers the following types of security: • WPA2 (Wi-Fi Protected Access 2) • WPA (Wi-Fi Protected Access) • WPA2-PSK (Pre-Shared Key) • WPA-PSK (Pre-Shared Key) What is WPA? WPA, or Wi-Fi Protected Access, is a Wi-Fi standard that was designed to improve the security features of WEP (Wired Equivalent Privacy).
Section 4 - Wireless Security Configure WPA/WPA2 Passphrase Using the D-Link Wireless Connection Manager It is recommended to enable WPA-PSK on your wireless router or access point before configuring your wireless adapter. If you are joining an existing network, you will need to know the WPA-PSK passphrase being used. 1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your desktop. 2. Highlight the wireless network (SSID) you would like to connect to and click Connect.
Section 4 - Wireless Security It is recommended to enable WPA-PSK on your wireless router or access point before configuring your wireless adapter. Make sure you enter the passphrase exactly the same on all wireless devices. 1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your desktop. Click on New to create a new profile or highlight an existing profile and click Modify. 2. Select WPA/WPA2-Personal under Set Security Option. 3. Select TKIP or AES. 4.
Section 4 - Wireless Security Configure WPA/WPA2 Passphrase Using Windows® 7 It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before configuring your wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used. 1. Click on the wireless icon in your system tray (lower-right corner). 2. The utility will display any available wireless networks in your area.
Section 4 - Wireless Security 3. Highlight the wireless network (SSID) you would like to connect to and click the Connect button. If you get a good signal but cannot access the Internet, check your TCP/IP settings for your wireless adapter. Refer to the Networking Basics section in this manual for more information. 4. The following window appears while your computer tries to connect to the router.
Section 4 - Wireless Security 5. Enter the same security key or passphrase that is on your router and click Connect. You can also connect by pushing the WPS button on the router. It may take 20-30 seconds to connect to the wireless network. If the connection fails, please verify that the security settings are correct. The key or passphrase must be exactly the same as on the wireless router.
Section 4 - Wireless Security Configure WPA/WPA Passphrase Using Windows Vista® It is recommended to enable wireless security (WPA/WPA2) on your wireless router or access point before configuring your wireless adapter. If you are joining an existing network, you will need to know the security key or passphrase being used. 1. Open the Windows Vista® Wireless Utility by right-clicking on the wireless computer icon in your system tray (lower right corner of screen). Select Connect to a network. 2.
Section 4 - Wireless Security 3. Enter the same security key or passphrase that is on your router and click Connect. It may take 20-30 seconds to connect to the wireless network. If the connection fails, please verify that the security settings are correct. The key or passphrase must be exactly the same as on the wireless router.
Section 4 - Wireless Security Configure WPA/WPA2 Passphrase Using the Windows® XP Utility It is recommended to enable WPA-PSK on your wireless router or access point before configuring your wireless adapter. If you are joining an existing network, you will need to know the WPA-PSK key being used. 1. Open the Windows XP Wireless Utility by right-clicking on the wireless computer icon in your system tray (lower-right corner of screen). Select View Available Wireless Networks. 2.
Section 4 - Wireless Security 3. The Wireless Network Connection box will appear. Enter the WPA-PSK passphrase and click Connect. It may take 20-30 seconds to connect to the wireless network. If the connection fails, please verify that the WPA-PSK settings are correct. The WPA-PSK passphrase must be exactly the same as on the wireless router or access point.
Section 4 - Wireless Security Configure WPA/WPA2 (RADIUS) Using the D-Link Wireless Connection Manager WPA and WPA2 are for advanced users who are familiar with using a RADIUS server and setting up certificates. 1. Open the Wireless Connection Manager by double-clicking on the D-Link icon on your desktop. Click on New to create a new profile or highlight an existing profile and click Modify. 2. Select WPA/WPA2-Enterprise under Set Security Option and then select TKIP or AES. 3.
Section 5 - Troubleshooting Troubleshooting This chapter provides solutions to problems that can occur during the installation and operation of the DWA-121. Read the following descriptions if you are having problems. (The examples below are illustrated in Windows® XP. If you have a different operating system, the screenshots on your computer will look similar to the following examples.) 1. How do I know if my adapter is installed properly? Go to Start > My Computer > Properties. Select the Hardware Tab.
Section 5 - Troubleshooting Click the + sign next to Network Adapters. Right-click on D-Link DWA-121 USB Adapter. Select Properties to check that the drivers are installed properly. D-Link DWA-121 Wireless N 150 Pico USB Adapter Look under Device Status to check that the device is working properly. Click OK to continue.
Section 5 - Troubleshooting 2. The computer does not recognize the DWA-121 Wireless N 150 Pico USB Adapter. Make sure that the DWA-121 Wireless USB Adapter is properly seated in the computer’s USB port. If Windows does not detect the hardware upon insertion of the adapter, try a different port. Also, make sure to completely remove the drivers that were previously loaded. 3. The computer with the DWA-121 installed is unable to connect to the wireless network and/or the Internet.
Section 5 - Troubleshooting Check that the Network Connection for the wireless client is configured properly. Select AP (Infrastructure) when connecting to an access point. Double-click on the WLAN icon in the taskbar > click on Configuration to change the settings for the wireless adapter. If Security is enabled, make sure that the correct encryption keys are entered on both the DWA-121 and the access point. Double-click on the WLAN icon in the taskbar > click Encryption.
Section 5 - Troubleshooting Windows® 7 Troubleshooting Go to Start > Computer > Properties.
Section 5 - Troubleshooting Click the + sign next to Network Adapters. Right-click on D-Link DWA-121 Wireless N 150 Pico USB Adapter. Select Properties to check that the drivers are installed properly. Look under Device Status to check that the device is working properly. Click OK to continue.
Appendix A - Wireless Basics Wireless Basics D-Link wireless products are based on industry standards to provide easy-to-use and compatible high-speed wireless connectivity within your home, business or public access wireless networks. Strictly adhering to the IEEE standard, the D-Link wireless family of products will allow you to securely access the data you want, when and where you want it. You will be able to enjoy the freedom that wireless networking delivers.
Appendix A - Wireless Basics What is Wireless? Wireless or Wi-Fi technology is another way of connecting your computer to the network without using wires. Wi-Fi uses radio frequency to connect wirelessly, so you have the freedom to connect computers anywhere in your home or office network. Why D-Link Wireless? D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking products. D-Link delivers the performance you need at a price you can afford.
Appendix A - Wireless Basics Who uses wireless? Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for home, office, business, D-Link has a wireless solution for it.
Appendix A - Wireless Basics Where is wireless used? Wireless technology is expanding everywhere not just at home or office. People like the freedom of mobility and it’s becoming so popular that more and more public facilities now provide wireless access to attract people. The wireless connection in public places is usually called “hotspots”.
Appendix A - Wireless Basics Wireless Modes There are basically two modes of networking: • Infrastructure – All wireless clients will connect to an access point or wireless router. • Ad-Hoc – Directly connecting to another computer, for peer-to-peer communication, using wireless network adapters on each computer. Unfortunately 802.11g/n products such as the DWA-121 do not support ad-hoc mode. An Infrastructure network contains an Access Point or wireless router.
Appendix B - Networking Basics Networking Basics Check your IP address After you install your new D-Link wireless adapter and have established a wireless connection, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP server (i.e. router) automatically. To verify your IP address, please follow the steps below. Windows® XP/2000 Users • Click on Start > Run. In the run box type cmd and click OK. • At the prompt, type ipconfig and press Enter.
Appendix B - Networking Basics Statically Assign an IP address If you are not using a DHCP capable gateway/router, or you need to assign a static IP address, please follow the steps below: Windows® XP/2000 Users • Windows XP - Click on Start > Control Panel. Make sure you are in Classic View. Double-click on the Network Connections icon. Windows 2000 – From the desktop, right-click My Network Places > Properties.
Appendix B - Networking Basics Windows 7/Vista® Users • Click on Start > Control Panel (make sure you are in Classic View). Double-click on the Network and Sharing Center icon. If you are using Windows Vista, click on Manage network connections along the left panel in the window. For Windows 7, click on Change adapter settings. • Right-click on the Wireless Network Connection which represents your D-Link wireless network adapter. • Highlight Internet Protocol Version 4 (TCP /IPv4) and click Properties.
Appendix C - Technical Specifications Technical Specifications Standards • IEEE 802.11n • IEEE 802.11g Transmitter Power Output • 11b: 19.9dBm • 11b: 17dBm • 11g: • 11g:24.3dBm 15dBm • 11n: 22.3dBm HT40 40 • 11n: 14 dBm at at HT HT 20, 20, 21.5dBm 13 dBm atatHT Bus Type • USB 2.0 (1.
Appendix D - Contacting Technical Support Contacting Technical Support Before you contact technical support, please have the following ready: • Model number of the product (e.g. DWA-121) • Hardware Revision (located on the label on the adapter (e.g. rev A1)) • Serial Number (s/n number located on the label on the adapter). You can find software updates and user documentation on the D-Link website as well as frequently asked questions and answers to technical issues.
Appendix E - Warranty Warranty Subject to the terms and conditions set forth herein, D-Link Systems, Inc. (“D-Link”) provides this Limited Warranty: • Only to the person or entity that originally purchased the product from D-Link or its authorized reseller or distributor, and • Only for products purchased and delivered within the fifty states of the United States, the District of Columbia, U.S. Possessions or Protectorates, U.S. Military Installations, or addresses with an APO or FPO.
Appendix E - Warranty Limited Software Warranty: D-Link warrants that the software portion of the product (“Software”) will substantially conform to D-Link’s then current functional specifications for the Software, as set forth in the applicable documentation, from the date of original retail purchase of the Software for a period of ninety (90) days (“Software Warranty Period”), provided that the Software is properly installed on approved hardware and operated as contemplated in its documentation.
Appendix E - Warranty • After an RMA number is issued, the defective product must be packaged securely in the original or other suitable shipping package to ensure that it will not be damaged in transit, and the RMA number must be prominently marked on the outside of the package. Do not include any manuals or accessories in the shipping package. DLink will only replace the defective portion of the product and will not ship back any accessories.
Appendix E - Warranty IF ANY IMPLIED WARRANTY CANNOT BE DISCLAIMED IN ANY TERRITORY WHERE A PRODUCT IS SOLD, THE DURATION OF SUCH IMPLIED WARRANTY SHALL BE LIMITED TO THE DURATION OF THE APPLICABLE WARRANTY PERIOD SET FORTH ABOVE. EXCEPT AS EXPRESSLY COVERED UNDER THE LIMITED WARRANTY PROVIDED HEREIN, THE ENTIRE RISK AS TO THE QUALITY, SELECTION AND PERFORMANCE OF THE PRODUCT IS WITH THE PURCHASER OF THE PRODUCT.
Appendix E - Warranty FCC Statement: Federal Communication Commission Interference Statement This device has withwith FCCthe RF limits Exposure in device, the typical laptop computer configuration this device be to This equipment hasbeen beentested tested for andcompliance found to comply for a (SAR) Class limits B digital pursuant to Part 15 of the FCC Rules.
Appendix E - Warranty Industry Canada Notice: Industry Canada Statement This complies with RSS-210 of the Industry Rules. Operation is subject to the is following twotoconditions: (1) This device may not cause harmful interference, and (2) this device must accept any Thisdevice device complies with RSS-210 of the Canada Industry Canada Rules. Operation subject the following two conditions: interference received, including interference that may cause undesired operation.
Appendix F - Registration Registration Product registration is entirely voluntary and failure to complete or return this form will not diminish your warranty rights. Version 1.
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