I have a Plex media server running in another Docker container on the same server as HA. I have tried the default configuration without a host, added the host, added the server name, but I get a connection error because it is attempting to connect to the old system I had it on. I have multiple Tivos and Samsung TVs that are able to see the Docker container version just fine via discovery.
Any clues where this old IP address might be and how I can unset it?