Problem playing high bitrate content wifi vs wired

[rmedhurs]

TV model is Samsung UE50MU6120 and I’m trying to play the Star Wars 4K77 version.
On a wired connection it was buffering, only fractionally but it was still unwatchable.
Looking at the codec the bitrate is 98258 kbps and my TV seems to only have a 100mbps wired nic. (I haven’t checked that 100% could be dodgy cabling)

In any case I thought I’d try wifi. Now the wierd part is that over wifi Plex tries to transcode the source.

The playback never starts and I get a PLAYER_ERROR_NOT_SUPPORTED_FORMAT error on the TV.

Plug in the ethernet cable and it plays (buffery)

Amyone have ideas why changing to wifi would make the transcode choose differently?

[rmedhurs]

Hi trumpy

So how does plex determine the bandwidth?
With the wired connection its doing a direct play, and somewhat ironically the 100mbps the TV will connect at isn’t really enough to play the source directly, hence the buffering

With wireless it seems to go straight to transcode, which if I understand correctly is because it doesn’t know the actual throughput, so transcodes to h264 so it can dynamically adjust.

So questions
On the samsung client is there different logic on calculating the throughput? i.e the TV can assume it will get 100mbs on wired, but can’t make assumptions about wifi (understandably)

I’ll try some jellyfish tests.