I often receive below error when I try to run 'dmsmgr -sync self' command on one of our PAMSC DH.
To resolve this, I usually restart the PAMSC services or restart the server. I attached here the support file on the problem server.
Release : 14.1
In this case the seosd was not started.The dmsmgr command could not communicate without this services running.
The service did need to be restarted