Where is the wep key on the router

Attach a laptop or PC directly to the Router and open your web browser. Then type http://192.168.1.1 and you will be taken to a web page. The web information is usually under the security tab or under wireless. When you enable WEP it will ask you for a pass phrase, under that you will see three unique keys. Any of these will work as a WEP key.

The default username, password on the Linksys I think is Admin:admin if you have not changed it. You can also reset the router to get the default password back if you forgot it.