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D-Link DWA-121 User Manual

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

• Click

Use the following IP address

and enter an IP address that is on the same

subnet as your network or LAN IP address on your router or network.

Example:

If the router’s LAN IP address is 192.168.0.1, make your IP address

192.168.0.X where X is a number between 2 and 99. Make sure that the number

you choose is not in use on the network.

• Set

Default Gateway

the same as the LAN IP address of your router or gateway.

• Set

Primary DNS

the same as the LAN IP address of your router or gateway.

• The

Secondary DNS

is optional (you may enter a DNS server from your ISP).

• Click

to save your settings.

Summary of Contents for DWA-121

Page 1: ......

Page 2: ...ect to a Wireless Network 30 Using Windows 7 30 Connect to a Wireless Network 31 Using Windows Vista 31 Using Windows XP 32 Wireless Security 33 What is WPA 33 Configure WPA WPA2 Passphrase 34 Using the D Link Wireless Connection Manager 34 Using Windows 7 36 Using Windows Vista 39 Using the Windows XP Utility 41 Configure WPA WPA2 RADIUS 43 Using the D Link Wireless Connection Manager 43 Troubles...

Page 3: ...er 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 11g access point or wireless router Product Overview Package Contents Manual and Software on CD Quick Installation Guide ...

Page 4: ...tion 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 configure this USB Adapter without having any difficulties 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 spe...

Page 5: ...ard 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 configuration and diagnostic utilitie...

Page 6: ...6 D Link DWA 121 User Manual Section 1 Product Overview Hardware Overview 1 USB Connector Used to connect the DWA 121 to your computer 1 ...

Page 7: ...e SSID and security settings of the network s you want to connect to Remove Existing Installations If you ve installed a different manufacture s adapter or a different model D Link adapter make sure the software is uninstalled before installing the new software Some utilities may cause a conflict with the new software If you plan to use multiple adapters at different times make sure the utilities ...

Page 8: ...icts 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 NetworkAdapters Right click the adapter you would like to disable and select Disable ...

Page 9: ...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 ...

Page 10: ...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 difference A solid metal door or aluminum studs may have a negative effect on range Try to positi...

Page 11: ...er 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 Adapter Installation ...

Page 12: ...12 D Link DWA 121 User Manual Section 2 Installation The InstallShield Wizard window will appear Please select your language from the list and click Next to continue ...

Page 13: ...on Insert the adapter into an available USB port on your computer If the Found New Hardware Wizard appears click Cancel Select the new folder or an existing folder that you would like the installation Wizard to add program icons to and then click Next ...

Page 14: ...User Manual Section 2 Installation Pleasewaitwhiletheinstallationwizardconfiguresyournewsoftwareinstallation To manually connect to your wireless network select Manually connect to a wireless network and then click Next ...

Page 15: ...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 ...

Page 16: ...stallation Click Finish to continue If you are prompted to reboot your computer select Yes I want to restart my computer now Click the Scan button to display a list of wireless networks site survey Click on the network name SSID and click Next ...

Page 17: ...asysetupofsecurity 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 TobegintheWPSsetup selecttheoptiontheUsetheWiFiProtectedSetup WPS wizard for simplified Wireless connection and click Next ...

Page 18: ...nual 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 ...

Page 19: ...lation When this screen appears you have successfully established connectivity Click Finish to complete your setup Press theWPS button located on the right side of the Router Access point until it is lit and click on the virtual Connect Now button ...

Page 20: ...nk 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 Configuration If you are using Windows 7 Vista or XP please skip to pages 30 31 or 32 respectively Doubl...

Page 21: ... 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 WirelessSecurity section for more information Select a wireless network profile from the drop down menu and click Activate to connect Allow up to 30 seconds to connec...

Page 22: ...eyouraccesspointorwirelessrouteriscloseby Writedownthenumber 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 Personal Identification Number PIN ...

Page 23: ...Manual 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 ...

Page 24: ...24 D Link DWA 121 User Manual Section 3 Configuration Press theWPS button located on the right side of the Router Access point until it is lit and click on the virtual Connect Now button ...

Page 25: ... created New Button Modify Click New to create a new wireless network profile refer to page 22 Click Modify to edit a current profile refer to page 23 Click Delete to remove a profile Click Activate to use a profile Allow up to 30 seconds to connect to the wireless network The Profile Details section will display information about the wireless network such as the network name SSID network type Inf...

Page 26: ... for your profile e g Home Office Coffee Shop Enter the SSID of the wireless network Select the network type If you are connecting to a wireless router or access point select Infrastructure Ad hoc mode is not supported Select the type of security used Please refer to the Wireless Security section for more information Click OK to save your settings Network Type Security Type OK Button ...

Page 27: ...ify button from the My Wireless Networks page Profile Name SSID Enter a name for your profile e g Home Office Coffee Shop Displays the SSID of the network Displays the network type Select the type of security used Please refer to the Wireless Security section for more information Click OK to save your settings Network Type Security Type OK Button ...

Page 28: ...28 D Link DWA 121 User Manual 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 ...

Page 29: ...29 D Link DWA 121 User Manual Section 3 Configuration The About screen gives you information about the Driver and Utility Versions of the DWA 121 About ...

Page 30: ...7 utility as seen below Right click on the wireless computer icon in your system tray lower right corner next to the time Select Connect to a network If you receive the Wireless Networks Detected bubble click on the center of the bubble to access the utility or The utility will display any available wireless networks in your area Click on a network displayed using the SSID and click the Connect bu...

Page 31: ... Vista utility as seen below Right click on the wireless computer icon in your system tray lower right corner next to the time Select Connect to a network If you receive the Wireless Networks Detected bubble click on the center of the bubble to access the utility or The utility will display any available wireless networks in your area Click on a network displayed using the SSID and click the Conne...

Page 32: ...urvey option similar to the Windows XP utility as seen below Right click on the wireless computer icon in your system tray lower right corner next to the time Select View Available Wireless Networks If you receive the Wireless Networks Detected bubble click on the center of the bubble to access the utility or The utility will display any available wireless networks in your area Click on a network ...

Page 33: ...is based on 802 11i and uses Advanced Encryption Standard instead of TKIP User authentication which is generally missing inWEP through the extensible authentication protocol EAP WEP regulates access to a wireless network based on a computer s hardware specific MAC address which is relatively simple to be sniffed out and stolen EAP is built on a more secure public key encryption system to ensure th...

Page 34: ...nager 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 If the network is using WPA PSK the screen as shown to the bottom right will appear 3 Enter the WPA PSK passphrase exactly as it is on your wireless router or access point Click the Show text in the password field box to see the passphrase Unchecking it w...

Page 35: ... on all wireless devices 1 Open theWireless Connection Manager by double clicking on the D Link icon on your desktop Click onNew 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 Enter the passphrase exactly as it is on your wireless router or access point 5 Click OK to connect to the network Allow ...

Page 36: ... 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 2 The utility will display any available wireless networks in your area 1 Click on the wireless icon in your system tray lower right corner ...

Page 37: ...e 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 ...

Page 38: ... 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 ...

Page 39: ...ss 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 2 Highlight the wireless network SSID you would like to connect to and click Connect 1 OpentheWindowsVista WirelessUtilitybyright clickingonthewireless computer icon in your system tray lower right corner of screen Select Connect to a network ...

Page 40: ...ecurity 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 ...

Page 41: ...t before configuring your wireless adapter If you are joining an existing network you will need to know the WPA PSK key being used 2 Highlight the wireless network SSID you would like to connect to and click Connect 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 ...

Page 42: ...on box will appear Enter theWPA 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 ...

Page 43: ...and then select TKIP or AES 3 Click on Advanced Config to continue 4 Next to EAP Type select EAP TLS or PEAP Extensible Authentication Protocols allow devices on the network to request authentication from the RADIUS server in the network All the devices on the network must use the same EAP type when using a RADIUS server for authentication Some RADIUS servers require that theValidate Server field ...

Page 44: ...r 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 Go to Start My Computer Properties ...

Page 45: ...s Right click on D Link DWA 121 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 D Link DWA 121 Wireless N 150 Pico USB Adapter D Link DWA 121 Wireless N 150 Pico USB Adapter ...

Page 46: ...dband connection Check that the LED indicators on the wireless router are functioning properly If not check that the AC power and Ethernet cables are firmly connected Check that the IP Address subnet mask gateway and DNS settings are correctly obtained from your network Confirm your wireless key In Infrastructure mode make sure the same Service Set Identifier SSID is specified on the settings for ...

Page 47: ...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 Check to see that the key selected is set to the same key as other devices on the network ...

Page 48: ...48 D Link DWA 121 User Manual Section 5 Troubleshooting Windows 7 Troubleshooting Go to Start Computer Properties Select the Device Manager ...

Page 49: ...oting 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 LookunderDeviceStatustocheckthatthedeviceisworkingproperly ClickOKtocontinue ...

Page 50: ...reless LANs are used increasingly in both home and office environments and public areas such as airports coffee shops and universities Innovative ways to utilizeWLAN technology are helping people to work and communicate more efficiently Increased mobility and the absence of cabling and other fixed infrastructure have proven to be beneficial for many users Wireless users can use the same applicatio...

Page 51: ... types of wireless networks Wireless Local Area Network WLAN and Wireless Personal Area Network WPAN Wireless Local Area Network WLAN In a wireless local area network a device called an Access Point AP connects computers to the network The access point has a small antenna attached to it which allows it to transmit data back and forth over radio signals With an indoor access point as seen in the pi...

Page 52: ...as a wireless solution for it Home Gives everyone at home broadband access Surf the web check email instant message and etc Gets rid of the cables around the house Simple and easy to use Small Office and Home Office Stay on top of everything at home as you would at office Remotely access your office network from home Share Internet connection and printer with multiple computers No need to dedicate...

Page 53: ...ocess of setting up a wireless network Tips Here are a few things to keep in mind when you install a wireless network Centralize your router or Access Point Make sure you place the router access point in a centralized location within your network for the best performance Try to place the router access point as high as possible in the room so the signal gets dispersed throughout your home If you ha...

Page 54: ...sing 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 All the wireless devices or clients will connect to the wireless router or access point An Ad Hoc network contains only clients such as laptops with wireless USB Adapters All the adapters must be in Ad ...

Page 55: ...ipconfig and press Enter ThiswilldisplaytheIPaddress subnetmask andthedefaultgatewayofyouradapter Windows 7 Vista Users Click Start All Programs Accessories Command Prompt You may need administrative access to run this application For all additional prompt windows inquiring of running the command prompt application select Yes OK or Continue At the prompt type ipconfig and press Enter This will dis...

Page 56: ...etworkadapter orotheradapter whichwillbeconnected to your router Highlight Internet Protocol TCP IP and click Properties Click Use the following IP address and enter an IP address that is on the same subnet as your network or LAN IP address on your router Example If the router s LAN IP address is 192 168 0 1 make your IP address 192 168 0 X where X is a number between 2 and 99 Make sure that the n...

Page 57: ...ternet Protocol Version 4 TCP IPv4 and click Properties Click Use the following IP address and enter an IP address that is on the same subnet as your network or LAN IP address on your router or network Example If the router s LAN IP address is 192 168 0 1 make your IP address 192 168 0 X where X is a number between 2 and 99 Make sure that the number you choose is not in use on the network Set Defa...

Page 58: ...ng OFDM Complementary Code Keying CCK Transmitter Power Output 11b 17dBm 11g 15dBm 11n 14 dBm at HT 20 13 dBm at HT 40 Operating Voltage 5 VDC 10 Operating Temperature 0 to 40 ºC 32 to 104 F Operating Humidity 10 to 90 maximum non condensing Dimensions 75 x 05 x 0 2 Weight 2 2 g Certifications FCC Class B IC Wi Fi Warranty 1 Year Maximum wireless signal rate derived from IEEE Standard 802 11n and ...

Page 59: ...he 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 For customers within the United States Phone Support 877 453 5465 Internet Support http support dlink com For customers within Canada Phone Support 800 361 526...

Page 60: ...er this Limited Warranty will be at D Link s option to repair or replace the defective Hardware during the Warranty Period at no charge to the original owner or to refund the actual purchase price paid Any repair or replacement will be rendered by D Link at an Authorized D Link Service Office The replacement hardware need not be new or have an identical make model or part D Link may at its option ...

Page 61: ...e for the non conforming Software will be refunded by D Link provided that the non conforming Software and all copies thereof is first returned to D Link The license granted respecting any Software for which a refund is given automatically terminates Non Applicability of Warranty The Limited Warranty provided hereunder for Hardware and Software portions of D Link s products will not be applied to ...

Page 62: ...ng and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing requirements or that is determined by D Link not to be defective or non conforming What Is Not Covered The Limited Warranty provided herein by D Link does not cover Productsthat inD Link sjudgment havebeensubjectedtoabuse accident alteration modification tampering negligence misuse faul...

Page 63: ...REMEDY FOR A BREACH OF THE FOREGOING LIMITED WARRANTY IS REPAIR REPLACEMENT OR REFUND OF THE DEFECTIVE OR NONCONFORMING PRODUCT THE MAXIMUM LIABILITY OF D LINK UNDERTHISWARRANTY IS LIMITEDTOTHE PURCHASE PRICE OFTHE PRODUCT COVERED BYTHEWARRANTY THE FOREGOING EXPRESS WRITTEN WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY OTHER WARRANTIES OR REMEDIES EXPRESS IMPLIED OR STATUTORY Govern...

Page 64: ... can be determined by turning the equipment off 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 different from that to which the receiver is connected Consult the dealer or an experienced ra...

Page 65: ...ited per regulations of Industry Canada The required antenna impedance is 50 ohms IMPORTANT NOTE IC Radiation Exposure Statement This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment End users must follow the specific operating instructions for satisfying RF exposure compliance This equipment should be installed and operated with minimum distance 20cm ...

Page 66: ... DWA 121 User Manual Appendix F Registration Version 1 0 October 5 2010 Product registration is entirely voluntary and failure to complete or return this form will not diminish your warranty rights Registration ...

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