On one AppleTV, Plex can no longer connect to my local Plex server (it says that it is currently unavailable). I’m not sure when this happened. My iPhone and other Apple TV can connect without issue. I uninstalled and reinstalled the app on the problematic TV and re-authenticated with no success around fixing the issue. I did notice that it thinks my local server is remote (it displayed this on the icon originally). They are all on the same subnet.
I even tried setting the local LAN on the server just in case. Rebooted the computer running Plex server as well.
Server Version#:4.116.1
Player Version#:8.29(7486)