Adding another one to the list of things they probably should have thought of, here’s a quick fix for a common DPM install error: “Setup cannot grant the … account access to the DPM Database”.
This happens because you were a responsible adult and you provided the FQDN for the Domain when you specified the SQL account in the installation wizard:
The fix is easy. Ignore your training and use the NetBIOS name for the Domain during setup.
This remains a problem as of the System Center 2016 Tech Preview 5 release.
Happy DPM-ing!