Same issue on my UDM (not -Pro). My master goCoax MOcA 2.5 WF-803M adapter (w/current firmware version 1.06) is on a static local IP but cannot see it in my UDM Clients list nor access via Web browser (locally, via direct IP address). Otherwise, all seems to be OK with the MOcA connections/node. Pointers/advice welcome, pleeeeez?