I had the same problem trying to connect to my university's network. After not working and not working, etc., I just turned it on and it connected automatically from my saved settings. Why it wouldn't connect when I was manually inputting settings, but would later on, I don't know. I have discovered another problem, though. After several minutes of connection, it will kick me off and then it just cycles through trying to connect, connecting briefly, and disconnecting. Or, it won't even reconnect as part of the cycles, just try to connect and fail, try to connect-fail. I have read that this seems to be a problem inherit with 2.2, google changed the wifi driver from 2.1 to 2.2 for some reason, and this seems to be the problem. When will it be fixed? who knows.