I have a media server powered by an intel i7-5820K CPU and 16 GB of RAM. Recently I started playing 4K content from my Plex server and everything it’s fine when just one steam is on but when I start the second one both streams start to buffer.
I tested the LAN and everything it’s fine, it’a s gigabit network and all the components are working well. The CPU does not go over 30% when streaming both 4K and same with the memory.
I have direct play on both TV’s and the server is within local network, but i can’t figure why is this happening or what to change to solve this issue.
I’m going to assume the files are on the same drive and direct play.
I would check disk i/o. That would be the next thing I looked at. I had issues with more than 2 streams (regardless of size) when I first started using Plex. This was on my desktop PC (5960x and 64G of RAM, media on single disk). When I bought a NAS (QNAP, i5, 8G) and went to 6 disk RAID 10, my problems went away. I also use port aggregation (2G), but I doubt that’s an issue. If it’s not related to disk i/o, and your network checks OK, I don’t know what to look at next. Maybe the OS, especially if it’s Windows.
Playing a 4k file on my Samsung Tizen. Buffering every 5 seconds and the resources used are obviously very low.
So with direct play and no transcoding the buffer is still there.
I can play back multiple 4K files on my system. I use either pure HVEC files that the client can direct play or converted MP4/h.264/8 bit of the same movie that will direct play.
Playing a 4k file on my Samsung Tizen. Buffering every 5 seconds and the resources used are obviously very low.
So with direct play and no transcoding the buffer is still there.
Disabling Audio DTS (DSA) removes the buffer.
Might be a bug with your TVs client. Logs could help.
