We have 1131AG's in multiple locations.
One particular site is having problem w/ Intel cards.
They can see strong signal from the AP's but can't pull valid IP's, or even if they can pull an IP, the connection would drop in 3 minutes.
Initially this points to the driver, since only Intel users have this problem, but users are running the latest driver and their wireless works just fine any where else.
We disabled encryption just to rule out it being the possible cause.
If anyone has seen this weird issue please let me know how to fix it.