I am getting bizarre error with RoboCopy in Server 2008. It will randomly hang with "The specified network name is no longer available." error. Once that happens, it will continue to fail on the retries. But of course the remote server IS still available on the network and can be reached with other tools.

I think it must be somehow permission related but I can't figure out what is wrong. Any ideas would be much appreciated.

Other info:

Options : *.* /S /E /COPY:DAT /NP /R:10 /W:30

If I turn on the /B option it will fail 100% of the time at the very beginning (that's why

I think it has to be somehow permission-related)

The two servers are standalone and I am doing a NET USE command prior to the robocopy

It does not matter what user account on the remote server. Tried both Administrator and another user which was also a member of the local Administrators group

UAC is turned off on both sides

It is not always the same file that hangs. Sometimes it will get through half or more and sometimes it will fail on the first file