WRTS4G, computers not detecting wireless router

On my main desktop I can connect to the internet (obviously), but when I try to detect the wireless router it doesn't detect it and my laptop won't connect either. Up until yesterday I've been connected with no problems at all.
I've reset the system, I've changed my pass phrase, I've unplugged, made sure cables are in, the only thing I haven't done is beat my wireless router with a hammer and I'm close.
It picks up a signal when I am looking for wireless and I connect with "limited connectivity".
Any insight would be appreciated!
Thanks!
Message Edited by AprilMayRD on 08-08-2008 07:05 AM

It supposedly works and has no updates. I bought a new wireless router today, a Linksys WRT31ON, still the same exact problem.
The main desktop has internet somehow, but the other computers can only have a limited connectivity. I'm shelling out money for Geek Squad to come on Monday. Does Linksys not have 1-800 numbers????????

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WRTS4G, computers not detecting wireless router

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