Sam can't connect his wife's iPad to his Wi-Fi Network. He tries to input his password, but it says the password isn't correct, even though his other devices use it just fine. Leo says the iPad probably remembered an incorrectly entered password. Sam should go into Settings, and choose "forget this network." This will erase the password so he can reacquire the network and input the correct password. That should solve the issue. Another possible solution is to shut it all the way off, wait a few minutes and turn it back on. This could wipe the RAM and when he turns it on, it might allow him to enter the password correctly.