We've upgraded (Migrated) to Exchange 2013 CU2 and although ActiveSync is working Direct Push has stopped.
We have new mailbox servers and the ActiveSync Server that had Exchange 2010 had Exchange uninstalled and Exchange 2013 installed back on to the same server.
All network settings, firewall settings and certificates remain the same.
ActiveSync is working, but only in fetch mode. We can see port 443 open and in use and testexchange website shows pass.
Now I'm stumped. Fundamentally the only change is the Exchange version, can anybody point me in the right direction on how to diagnose and fix this issue.
Items changed on the mobile devices update immediately and are visible on outlook. New email waits for the mobile to be used or a fetch period to be reached.
We're seeing the same issues on multiple device types: iphone, ipad, android, windows mobile 8.
We've had this working for years starting from Exchange 2003 without any issues.
Thanks,
Iain.