I have PMS running on a Ubuntu server. When accessed from an Linux OS HTPC it is reliable enough.
I have the plex media player installed on an OPPO mobile device, a Fire-TV stick and and Android-TV that’s working. I think the last may be running an earlier plex player.
All the players work fine. For 25 minutes. Then the screen dims and play stops (video or music). pressing a remote button restarts things, so it suggests power management is kicking in somewhere. I am confident it is none of devices, other than the Fire-TV.
Any ideas?