My iPod touch 4.2.1 won't connect to wi-fi
It used to connect fine, and now has stopped working. The settings say it is connected, and I see the wi-fi signal bars, but can't access any web sites or online data. This happens no matter what wi-fi network I use. I have tried resetting, restarting, making sure I have the latest OS (can't get 5.0 on my device), reset my router at home, tried public networks. Nothing works!
iPod touch (2nd generation), iOS 4.2