i've seen quite a few search results on this but no answers.
"brand new" refurb ipad 5.1.1 no settings adjusted.
after a long sleep mode (overnight) the ipad has lost it's wifi. not only that, the ipad is slow to respond to everything.,,,,as if it's groggy. a couple of times, it didn't "turn on" when the cover was opened....i had to tap the home button to bring up an unlock. backlight seems a bit dimmer etc etc. just in general - the ipad is not "alert". i have to restart the unit and everything is cheery again. wifi is connected, everything normal
any clues...i've googled this. many results, no answers.