So I'm having this error while trying to attach a server on an untrusted domain:
Attach protected computer ServerName.FQDN-PN.local failed:
Error 32680: The credentials specified for server ServerName.FQDN-PN.local are invalid.
Error details: Access is denied (0x80070005)
Recommended action: Rerun the operation with the same credentials that were provided when running SetDpmServer for the target server.
DPM doesn't even thinks that much, it's a pretty quick failure pop-up.
I've tried to configure dpm agent on the untrusted server using both FQDN and NetBios only,
SetDpmServer.exe -dpmservername ServerName.FQDN.local -isnondomainserver -username dpmusr
SetDpmServer.exe -dpmservername srvdpmlx -isnondomainserver -username dpmusrfsmeta4
But both return the same error.
The DPM server is on the domain ServerName.FQDN.local and the untrusted computer is on the domain FQDN-PN.local. Both domains are unrelated, but are contactable with each other by network conectivity.
I found this thread (DPM 2010 - Backup domain controller of untrusted forest...), but somehow I didn't relate much to it.
I'm sure I'm providing the correct credentials.
I did have to install C++ 2008 runtime on the server, but I used the version on the dpm agent folder (AC not RA); Not sure if problematic. The system is running a server 2008 SP1 64bit.
Any help would be greatly appreciated. Please feel free to ask questions if I happened to left something unclear.