I think this problem started after the iPad was upgraded to iOS 9.3. It might be the activation bug that we've all read about. But I can't figure out what to do with this thing. It asks for a password, and I have it, but it won't accept. It is also not connected to any Wifi network. When I plug it into iTunes, it asks if I can trust the computer, I say yes, and then it says to respond on the iPad, which I can't do, since it is stuck on the screen asking for the password. I can't turn off activation lock, because when I log into iCloud and go to "Find my iPhone", it says it can't find the device, because it isn't on wifi. So.... I'm stumped. Ideas?