Cannot direct play 4K media with 7.1 audio

In my case the issue has been solved: just to clarify

  • My issue was not present before, a new Plex client has indeed broken something that I couldn’t Direct Stream.
  • I was wrong about the TrueHD codec. The issue happened whenever Plex had to Direct Stream instead of Direct Play.
  • Solution: my plex server is running under a reverse proxy. I’ve never had any issues direct streaming using my reverse proxy (traefik) but there was some kind of Plex client update that has generated this. To solve the issue I had to expose port 32400 and let plex stream directly through TCP bypassing my reverse proxy.
  • I don’t like this solution as I’m exposing port 32400 letting plex available for possible attacks, but it’s the only way I’ve found that Direct Stream started working again. Probably some modification on how plex sends the transcoded chunks has generated this.

More info:

1 Like