Fixed it: The upgrade from 4.15 to 4.16 caused the setting “Auto-connect to server” to be reset. When it starts up, auto-connect tries to create a link on localhost at 127.0.0.1 when the server is started and the clients join it fails the connection and resets the IP to 10.1.10.14 and connects the clients to the listen server, but when the ServerTravel is called the networking fails…