Hello CaptGrumpy! I have EM v5.3 installed on my laptop and also had v5.1 prior to that. It was necessary to work directly with SAS and allow a remote desktop connection to resolve my configurations. There are special considerations to how the userid is set up and authorizations in Management Console. Also the SAS services through systems configuration. I'm not sure we ended up with a procedure, but I will post my SAS ticket number after I get to work as a reference point for SAS Tech.
I'll try to help, but you will definitely need SAS Tech Support.