Just updated plex server and lost remote access instantly. 
I see on the other topic that you already know about the issue so nevermind
Same thing happened here. Updated to latest version (plexmediaserver_1.28.2.6106-44a5bbd28_armhf) and immediately lost remote access. Tried stopping and restarting service but no good. Tried stopping and restarting RPi 4b running PMS and still no good. Suggestions for a fix?
