Forgotten security key number

[Guest]

what do I do to find security key number

 

[Guest]

If by that you mean the router's WEP or WPA wireless security passphrase, you need to log in to the router via an ethernet cable linking the computer to the router -- one is usually provided with the router. Ethernet bypasses wireless security.

You still need to know the router login password and how to address the router via your browser. I suggest you read the Quick Start leaflet that came with the router or download the manual from the manufacturer's site.