The error 'unable to communicate with master host xxx' may be displayed when a user tries to run a command via UPM (Privilege Manager).
This error indicates that communications between the master and UPM component, ie Agent or client are failing, possibly due to an encryption mismatch issue.
Check that the pm.settings file is the same on the master and UPM Agent/client machine. Ensure that the same encryption type is used on all components.
Related Links:
"How to check communications:"
https://support.quest.com/SUPPORT/index?page=solution&id=SOL35555
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