I am not getting all end of the world and that’s great for you, I wish I had those results, if you search the forums you will see there are a large number of people seeing the same issues and posting on it, not just me. Ports have been set via uPnP, and manually to 32400, both time same issues. Here is another post with someone having the same issue, more and more posts pop up everyday. I have to manually go restart Plex, I’ve even created a service to start it and scheduled reboots of the server during times nobody would be remotely connected, still have remote access problems in between. Below are just a few of the many strings I’ve been on trying to resolve the issue.
