As connectivity has now been established successfully, the next step is to return to Network Properties and configure WEP settings to ensure the best security possible for the network.
On the host computer, open the Wireless Network Properties dialog box and select the Data encryption (WEP enabled) check box. Consult the documentation provided by your wireless card manufacturer for the key format and key length.
Use the highest level of encryption possible (key length) that is supported by your hardware and drivers.
Be sure that if you use an ASCII network key that you pick random characters and letters that can't be easily guessed.
The final step is to use the same key and encryption settings and configure the client computer(s). Note: for additional security, consider changing the key on a regular weekly basis.