For those having problems with the iOS 9.3 update please read...
So many people are having problems with the update to iOS 9.3 and the questions are flooding the iOS support forums now. I am hoping that by consolidating some of the information available, it will help some of you without starting hundreds of new threads all asking about the same things.
Please do not shoot the messenger if you already know all of this. I am just trying to help by providing some information To the community. Theses problems are well known, Apple has acknowledged them and is reportedly working on a fix that should be out soon.
Here are some tech site articles that explain the problems if any of you are interested in reading them. They are in no particular order other than what my most recent Google search turned up for me.
http://www.forbes.com/sites/amitchowdhry/2016/03/24/apple-ios-9-3-is-causing-ser ious-ipad-problems/
http://www.macrumors.com/2016/03/25/apple-ios93-ipad-2-update-bugs-remain/
This one contains some suggestions that might actually help some of you.
http://osxdaily.com/2016/03/25/troubleshooting-ios-9-3-update-problems/
Apple posted these support articles a couple of days ago and they might help some of you as well
If you can't activate your iPhone, iPad, or iPod touch after installing iOS 9.3 - Apple Support
If you can’t activate your iPad 2 (GSM model) after you update to iOS 9.3 - Apple Support
If nothing suggested works for you right now, you will just have to be patient (remember that "please don't shoot the messenger" thing from above ) and wait until Apple issues the fixed software update.
iPad Air 2 Wi-Fi, iOS 9, 64GB, Space Gray