IP-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 , 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:
and edit the "ReservedPorts" value by ADDING the following lines:
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
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)