I still cant remember OR find my post on the Microsoft forums. I swear I had the same thing on my SP2. SSID or FIPS setting.. maybe just toggle them one at a time. and possible toggle the ip6 stuff. hold hope man, I was stuck for awhile.
ok, my issue is slowly coming back to me. wireless settings/wireless properties / security / advanced settings / I turned off FIPS and or wireless settings/wireless properties / connect even if not SSID
if I remember anything else ive tried I will try to put it here. it really was a long fight to get it going, but it was so long ago