Some providers print the network key on the modem. If that is not the case for you, then this is what you do to find the key. Select start, then run and type ‘cmd’ (without punctuation marks) in the space. When the window opens, type ipconfig/all in the window. Locate your IP address and type that in the address bar of the browser. This will take you to the admin page. Log in and look for the wireless tab, and you will find your key listed there.