I am assuming you changed the port. Typically 32400 is the port used for this. My recommendation would be to revert to default, then test, when you get a working config then change the port. Below are some Plex links that might help. Also might do a packet capture to verify the traffic is hitting the MX. Also something to make sure is that you are not behind the MX when trying this (use outside connection, LTE, etc.) https://support.plex.tv/articles/200289506-remote-access/ https://support.plex.tv/articles/200931138-troubleshooting-remote-access/
... View more