Environment
NetIQ Group Policy Administrator 6.7
NetIQ Group Policy Administrator 6.8.x
Situation
When Running an RSoP Wizard spawns an “Error occurred while calculating the contributing GPOs for the selected user and computer” error message at the Select Computer and User step.
Resolution
The error is a result of the MS RSOP service not being enabled (started) on the DCs; once the service is started the RSoP report worked ok.