I am having trouble with WEP encryption settings on the BEFW11S4.  What should I do?


Setting up and troubleshooting WEP encryption on a BEFW11S4



Before attempting to configure wireless WEP encryption, first disable the encryption all together on both your router and your wireless clients and make sure your wireless network is functioning properly.  At a basic level, you want to make sure that everything works, and that your wireless machines have a stable connection without WEP.  If you do not have a good connection without WEP encryption, you will not have one with WEP encryption.
Once you verify that your network is stable without encryption, the proper steps to turn on encryption are as follows:
Note:  When making changes to the router configuration in these steps, it is recommended that you use a computer that is plugged directly into the router (a non-wireless computer).  Using a wireless computer for these steps will drop the connection on that computer when these changes are made.
1.      Open a web browser and type in the IP address of the router into the browser address bar ( is the default IP of Linksys routers).
2.      When the username and password prompt appears, skip the username field and type admin for the password. Click OK or press the [Enter] key to load the router’s “Setup” page.  If you have changed the password, use it to access the router’s “Setup” page when this prompt appears
Note:  If you have forgotten the IP address or the password of the router (if either was changed), you must reset the router to factory defaults by holding in the Reset button on the router for 30 seconds.
3.      Once in the router “Setup” page, look for the Wireless section, and for the WEP option.  Set the radio button for WEP to Mandatory and click the WEP Key Setting button.
4.      A pop-up window for the encryption settings will appear.  Select the level of WEP encryption you want to use, 64-Bit or 128-Bit.
5.      To have the router create WEP keys automatically, enter a unique Passphrase and click on the Generate button to automatically generate 64 or 128-bit WEP keys.  The Passphrase is case-sensitive and must not exceed 16 alphanumeric characters.  Instead of using a Passphrase, you can manually enter in the WEP keys: If using 64-bit WEP, the key(s) must be exactly 10 hexadecimal characters long.  If using 128-bit WEP, the key must be exactly 26 hexadecimal characters long.  Hexadecimal characters include digits 0-9 and letters “A” through “F”.
6.      You can also select which WEP key you want the router to use when sending data using the Default Transmit Key (1-4) option. This number must match the WEP key that all receiving wireless devices connected to the router are using.  The default is 1.
7.      Click on the Apply button to save any new settings, or click the Cancel button to undo your changes.
8.      When changes have been made, close the WEP pop-up window.  When back at the main router “Setup” page, click on the Apply button again.  Press Continue if prompted to return to the previous page; if you are not prompted, the router will return to the page automatically.
9.      Once the settings have been applied, the router will now require that each wireless client connect using WEP encryption. 
10. You can now configure receiving wireless devices on the network with the correct WEP Passphrase (with a Linksys wireless device not using Windows XP), or the proper WEP key otherwise.  See Answer ID 749 for further instructions on Setting up WEP on Linksys Wireless network cards.
Things to check
·            A 128-bit WEP encrypted wireless network will NOT communicate with a 64-bit WEP encrypted wireless network. 
·            Make sure that all of your wireless devices are using the same encryption level.  
·            If using a Passphrase to generate your WEP keys, make sure you use EXACTLY the same Passphrase on all wireless devices connecting to the router. 
·            WEP keys are case sensitive.  Linksys Instant Wireless products use a Hexadecimal key for WEP encryption.  Other vendors may use an ASCII based key.  Encrypted networks using these two different keys will not communicate with each other.  One must be converted to the other format in order to connect.
For questions or further assistance, please contact Linksys Technical Support.

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