I have an iPad Air 2 64GB now running iOS 8.3. I've experienced problems where when using Keynote on my iPhone 5S to remote control a keynote presentation on my iPad, the connection will be dropped at random times during the presentation. I attributed this to Keynote bugs, but then my iPad also started randomly losing connections to my Logitech Ultrathin keyboard cover (the onscreen keyboard would appear) or I'd type a certain character and it would start repeating ad infinitum. I removed the interference factor from the equation by noticing that the problem would also occur within my office with thick walls and no bluetooth devices nearby … so I had Logitech replace the keyboard, but the connection drops still occur. I also reset all settings on my iPad, which didn't help.
So my next question is this: could the bluetooth hardware on my iPad Air 2 be flakey? Everything else about it works fine.
Best Answer
It sounds like you are not alone and no fix in sight at the moment according to this report.
How to potentially fix iPad Bluetooth Problems
For the time been, you can file your report with Apple and hope for the best.
https://www.apple.com/feedback/ipad.html