Your going to have to have a computer that's connected to your wireless router with an ethernet cable, this will not work with a wireless connection. Then depending on the brand of router that you have ie:Linksys your going to have to type the ip address of the router in your web browsers address bar. For example, Linksys routers ip address is 192.168.1.1. When you enter it in the address bar and hit enter a box will appear asking you for the user name and password. For older Linksys routers you leave the user name blank and the password is admin. For newer Linksys routers you enter admin in both boxes. From there you can configure everything including your WEP key and change the name name of your network and everything else. If you have a different router just Google it to find out the ip address as well as the default password to access the settings. Hope that helps.