Internet Security Key

Look on the back or under side of your router for the factory default.

It is best that you connect to your router via a cable first, then set it up with passwords and your own security key and then connect to it by wireless.
 



Sorry but the link to that thread doesn't work. The Mods on that sub Forum have put a new Sticky together and it's at the top of the Wireless Networking Forum page. This one should get you there. http://www.tomshardware.co.uk/forum/31382-18-find-security-password-wireless-router.