Hi, Same problem here, so I manually made the changes and restarted services (and eventually the server) with no success. When pushing to clients or running ccmsetup.exe locally I also see this message:
Failed to successfully complete HTTP request. (StatusCode at WinHttpQueryHeaders: 404)
Which I'm assuming is related.
Per the other suggestion on removing the MP after making the change I tried that too. I just deleted the MP and re-created. Watching MPSetup.log I see it says WebDAV is not setup appropriately (and notes the 4 settings that should be changed).
Some additional info that may or may not be of use:
This is a site restore, moved it from Server 2003 to Server 2008 R2 and there were no issues prior to the move.
Any advice would be really appreciated.
Thanks,
Matt