Try navigating to this (Plex) URL:
https://plex.tv/api/resources?includeIPv6=1&includeHttps=1&includeRelay=1&X-Plex-Token=your_token
You can find “your_token” using the information in this support article:
https://support.plex.tv/articles/204059436-finding-an-authentication-token-x-plex-token/#toc-0
The resulting XML document should show your server, including all connection information. Look to see if there is an entry for your server which shows the attribute “relay=1.”
