If you have ssh access to it, try this:
Otherwise, read this:
https://support.plex.tv/articles/200288666-opening-plex-web-app/
(Look for: On a Different Network)
If you have ssh access to it, try this:
Otherwise, read this:
https://support.plex.tv/articles/200288666-opening-plex-web-app/
(Look for: On a Different Network)