We have added another server to the site and added only the SMP role. Computers can run the backup task but not restore. Seems there is no computer association created. IIS is installed. The backup task works fine. Here's what the log states during the restore when it fails. I can see the data on the SMP server directory where we are backing up to. reply from server is 'NoReply' OSDSMPClient 5/6/2011 3:21:30 PM 2596 (0x0A24) ClientRequestToMP::DoRequest failed (0x80004005). OSDSMPClient 5/6/2011 3:21:30 PM 2596 (0x0A24) ExecuteRestoreRequestToMP failed (0x80004005). OSDSMPClient 5/6/2011 3:21:30 PM 2596 (0x0A24) ExecuteRestoreRequest failed (0x80004005). OSDSMPClient 5/6/2011 3:21:30 PM 2596 (0x0A24) OSDSMPClient finished: 0x00004005 OSDSMPClient 5/6/2011 3:21:30 PM 2596 (0x0A24) Process completed with exit code 16389 TSManager 5/6/2011 3:21:30 PM 2912 (0x0B60) !--------------------------------------------------------------------------------------------! TSManager 5/6/2011 3:21:30 PM 2912 (0x0B60) Failed to run the action: Request User State Storage. Unknown error (Error: 00004005; Source: Unknown) TSManager 5/6/2011 3:21:30 PM 2912 (0x0B60) Also on some computers, the backup fails with the Failed to find client signing certificate error. KB 971571 is not installed on that machine. Not sure why it would fail on some and work on others.Jay Parekh Project Leadership Associates