[ubuntu] Cannot access internet with wireless router LinkSys e1200

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http://ubuntuforums.org – Hi everyone, This is my first post, so thanks in advance for any help! I'll try to reciprocate down the road when I get more experience! I'm having trouble accessing my home wireless network through ubuntu - it was working fine last night, but now it inexplicably stopped working. I can connect to the router fine, but not to the internet. I've tried the usual resetting of modems and routers, and throughout all this painful process, I've determined that it seems to be probably a ubuntu-specific problem, since I am able to connect wirelessly through windows vista on the same machine (differe (Hardware)