Jellyfin "play on" not working.

[Bluegoldflag]

The Play On/Casting functionality is dependent on websockets.  If your clients don't have a working websocket connection, then the remote control functionality won't work.  This sounds like a reverse proxy configuration or network stability issue.

Oh, it worked when the server was running from windows. And yes it is running over nginx, do I need to configure something in the config file?