How do i find my security key after i "named" the network?

[harliibabii88]

I had to reset my roughter after a hurricane. when i did this a whole bunch of boxes popped up on my computer, one asking me to name it. after i named it i was able to go on and i wrote down the security key but i think i got something wrong. now i cant hook-up anymore computers to the network and mine is running very slow. i want to take this network off my laptop and onto another. how do i find the new security key?

 

[Emerald]

http://www.tomshardware.com/forum/31382-43-find-security-password-wireless-router