Hey everyone. I've been having problems connecting to the internet wirelessly. I'm a college student, and I recently upgraded to Leopard. When I got home from school, I was unable to connect to my home's network. It seems that I am unable to connect to any network that requires a password. I am currently using Verizon Fios, and requires a WEP password (which I've typed in correctly and all). I went to my cousin's house for Christmas, they have a password protected network, and I typed in their password and was unable to get on the net. I get a message that says "connection timeout", but I am able to connect to any network that doesn't require a password. It's been happening for days, so today I went to the Apple store and the only thing they could do for me on the spot was do a Leopard install for me, in case the OS messed up or something. I got home, and I was still unable to get on the net. So I downgraded to tiger (clean install), and that didn't work either. So now I think it's a hardware problem with my airport extreme. I called up Verizon Fios and they couldn't help, and I called up apple tech support and they ran some diagnostics and they believe the airport card is fine. They think it is some security problem coming from the router, but I have not changed any settings on the router for as long as I remembered. Does anyone know what the problem is? Thanks a lot.