We have an issue with that the ZPM workstations don't seem to report the results back to the ZCM server.
We have activated patch management last week, and the DAU has been distributed to the workstations and it seems to be running fine.
When it is done running there are many files in the %zenworks_home%/zpm directory.

However, the server doesn't seem to know about the workstations. It seems to only know about the ZCM primaries.

Other thing that might be related is that "Signature Download" and "Last Signature Download Time" are both empty in the patch management status.
I found an old TID that that would be fixed in ZCM 11.1

Is there an easy fix, or should I try to reset the ZPM config?