I am part of a large enterprise shop that uses iPhones and iPads for enterprise support. I upgraded from the iPhone 4 to the new iPhone 5. Four of my colleagues did the same. We are all having significant problems with getting Push Mail to work on the iPhone 5 with Microsoft Exchange Active Synch 2010 Enterprise.

All of our earlier iPhones and iPads with iOS6 work perfectly with Push and MS Exchange. We've tried re-stores, resets, and re-configs with no success. Three of us have got replacement phones and all have the same problem. We've gone through Apple Support and are not hearing much back, other than "we'll forward your information to our engineering team."

We see there is a growing thread of users with this problem on Apple (https://discussions.apple.com/thread...art=0&tstart=0) and (https://discussions.apple.com/message/19829715#19829715), but has anyone else in enterprise shops had this problem? If so, have you had any success in resolving it?

PS - We have a mixture of Verizon, AT&T, and Sprint in our shop and every carrier seems affected.