Open an Internet Explorer browser and type the router IP address which would be either http://192.168.0.1, http://192.168.1.1, or http://10.0.0.1 in the address bar and press Enter. The Login window will prompt for the router configuration username and password. The default username is “admin” and the default password is “password”. In there you will see the menus click on wireless settings, then scroll down and you will find the WEP Key. Here is a link to a screen shot tutorial that you may find useful – http://www.myaccount.charter.com/customers/Support.aspx?MenuItem=67.