Setup cannot grant the “FQDN\Username” account access to DPM database
Posted by Brajesh Panda on November 14, 2014
Applies to: System Center 2012 r2 Data Protection Manager
If you are facing below error during DPM, installation make sure uninstall & while re-installing, supply Domain NETBIOS name instead of Domain FQDN in Prerequisite Page.
I have no idea why Microsoft Dev folks did their coding like this. If it is required they could mention in the prerequisite page itself. I ended up wasting 2hrs for this.
Correct Credential Inputs by putting NETBIOS name