have a wired Vista, wireless XP, and a Windows 7 i am trying to connect to my wireless network with my windows 7, and it keeps telling me that Windows is unable to find a wireless access point--i am getting ready to go out and get a new router, as i just don't know what to do it lists my router as getting an excellent signal and strength--just won't connect HELP!!!
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Have you tried temporarily turning off wireless encryption -- might help narrow down possibilities.
Also check that Access List (exclude/include by MAC address) is disabled.