TS1398: iOS: Troubleshooting Wi-Fi networks and connectionsLearn about iOS: Troubleshooting Wi-Fi networks and connections
Currently Being ModeratedJan 7, 2013 2:20 PM (in response to Boomer\'s)
Toggle WiFi off and on
Try forgetting the network and reconnecting. Forget the network by tapping WiFi>"YourNetwork" - press the blue arrow>forget
This will allow you to put the password in again when you try to connect.
Check out TS 1398 on apple.com/support for further help