3015Server ActiveSyncIP-based AUTD failed to initialize because the processing of notifications could not be setup. Error code [0x80004005]. Verify that no other applications are currently bound to UDP port [2883], or try specifying a different port number.
This error is somewhat critical and will probably prevent any mobile device that uses ActiveSync from receiving push notifications.
The installation of patch 951746 and/or 951748 causes this problem as soon as you reboot, a result of enhanced security for DNS.
To resolve this problem, see the additional links below - or - as a quick fix - navigate to this registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
and edit the "ReservedPorts" value by ADDING the following lines:
645-1646
1701-1701
1812-1813
2883-2883
4500-4500
This change requires a reboot, and the fix resolved our problems immediately after the reboot.
In my case the DNS process ID was using UDP port 2883.
You can check this by running
netstat -ano|more
looking for UDP 0.0.0.0:2883 and cross-reference the PID in the Task Manager.
After restarting DNS service, the port returned to the w3wp service and the error message will despair immediately ( reboot is no required)