I have a 2003SBS which was recently moved from a physical machine into a virtual machine hosted on ESXi 5.0. All is working fine except activesync, which is behaving strangely, and causing all the iphones that are syncing with the server to keep re-downloading all the emails and contacts in everyones' mailboxes.
There isn't much in the event logs other than some 3005 errors in the application log (but not often):
Unexpected Exchange mailbox Server error: Server: [servername] User: [user] HTTP status code: . Verify that the Exchange mailbox Server is working correctly.
The HTTP code is sometimes 500, sometimes 503 - but OWA and everything else Exchange-related is working okay.
I have had a look around online and everything I have seen has pointed to network card binding order after a P2V conversion, but as far as I can see, this is set as it should be.
Could anyone help please as it is causing me a massive headache!
Thanks in advance.