Ever since the 11.2.1 update, during the night when I'm not using the iPad it loses its WiFi Connection. I'll open the cover and the WiFi icon is missing and I have no connection. I then need to go to Settings and reconnect. to my network. The radio is obviously alive, because it sees my router (as well as several of my neighbor's' routers. And then comes the second half of the problem. My password is 10 characters long. Sometimes, but not always, The "Join" key on the keyboard turns blue on the 7th character, other times not, but I get either a "Wrong Password" prompt, or a "Cannot Join Network" prompt. A restart solves the problem.I suspect I'm dealing with two separate problems, but I'm lost. Any ideas would be greatly appreciated.