I can log onto public wifi like Starbucks, my School, and any other household networks. But at my boyfriend's house, his network is password protected. I will enter in the password correctly, it will accept it, and say I am connected, but then I get the "!" over my airport icon, and it says it cannot connect. I was at a church tonight, also with a password protected network and it said I was connected (with full bars) and the "!" showed up again. What's wrong with my laptop? I forgot to mention, my boyfriend's macbook logs on just fine to his internet.