At my moms, my iPod, DSi, Wii, etc all connect perfectly to our WPA wifi. Whenever we go somewhere, like a hotel or such, unlocked wifi connections work great. However, when I go to my dads, he doesn't have wifi, but his neighbors do. It's unlocked, and has 3 bars on all devices. It won't connect on any of them though. It always gives an error even though it's unlocked? Help?