In my case catalogd listens on ports 23020, 25020 and 26000. Also everything seems to be working fine. I can see this subscriber in the StateStore UI:   Id: catalog-server@hostname:26000 Address: hostname:23020   And also in the Catalog Server UI:   statestore-subscriber.connected = true   So it really appears that the check is producing false positive, but I don't know how to debug it. It will be helpful if anyone can give a hint in which log to look to find why the check is failing. ... View more