I searched MR but couldn't find an answer to this one. On Saturday, 03/15, I upgraded my iPad MiniR from iOS 7.04 (?) to 7.1. No problems & it's actually much more pleasant than before. Using normal wifi while in my house. This afternoon I took the MiniR to a dental appointment so I could show my dentist some stuff. When I unlocked the MiniR at his office to enter his PW, I saw that my wifi was gone. No icon, no signal. His network and many others in the medical center were plainly visible in Settings but it didn't matter. iPad offered me the option of entering PW but without wifi function, of course I couldn't connect. Restarted several times = nothing. Uh oh. As soon as I got home a little while ago, I came here looking for a fix, thinking that I might have to restore. Just opened the cover of the MiniR and the wifi icon is back & connected to my home wifi. WTF? Any ideas about this? Could iOS 7.1 have some kind of Security glitch disabling wifi under some circumstances?