Buffering issues on Plex Media Server Unraid docker

[DrBobke]

Server Version#: 1.25.9.5721
Player Version#: 4.76.1

Hey all,

Since a long time, I am having issues with Plex media server in an Unraid docker and buffering issues. This happens on my Raspberry Pi 4, which is wired with UTP (and wireless) and on a PS3, which is wired. The connection from the Unraid machine is straight into my Unifi UDM PRO SE with Cat 5e wiring and is then straight onto the PS3 and Raspberry Pi (total lenght per cable is around 1 meter at most), so I am sure that is not the issue.

So far, I have tried trouble shooting using this article : Why is my video stream buffering? | Plex Support and turned on verbose logging, as suggested, but in none of the 6 logs, there is a mentioning of the speed of transcoding. I do see a lot of other things going on, which seems weird, as those movies/… have been on the unraid for a long time (and in Plex too).

I have also checked if my CPU were to blame (What kind of CPU do I need for my Server? | Plex Support), but since I have an i7-4930K CPU @ 3.40GHz, that should be more than fast enough for what I am using it for. My Mobo is Gigabyte Ltd. X79-UP4 and have 32 GB of Ram installed, as well as a dedicated GPU - GeForce GTX 1060 3GB.

Movies I am having trouble with is ‘all’ of them, but every 5-10 minutes it is noticeable, then usually it stutters a few times for a few seconds and then plays for another 5-10 minutes.
For example Pacific Rim, 191kbps wth 23.98 frames/sec, 1080p, 3.64 GB (so not even that big). It also stutters with Better Nate than ever (1080p, 4,71 GB), Transformers the last knight (1080p, 7.09 GB). None of the streams are 4K, so I have no idea why anything would stutter, buffer or whatever. I think I didn’t mess with any of the standard PLEX settings and I have 7 libraries in use, should that be of any concern.

I hope someone can help me. Let me know if you need specific logs, so I can upload them.

Thank you in advance,
Robert

[Release_The_Kraken]

Sadly I don’t have any useful advice but I can confirm I’m also experiencing similar issues. Only my “Movies” section has recently started taking a few minutes to load (buffers for a few minutes then plays fine). I’m running PMS on my ASUSTOR NAS

[DrBobke]

That’s not nice… Here, the movies stutters throughout the movie which is very annoying and I have no idea what is causing the issue.

I had similar issues for a long time, but at first, I thought it was my old NAS, so I changed that over to an unraid server with parts from my old PC, then it still buffered, then I changed from Popcorn Hour C200/300 to PS3 and Raspberry Pi 4b, still problems, then I changed my ASUS AC-RT 5300 and AP’s to all Unifi with an UDM Pro SE (and unifi AP’s), changed the cables, even put the UDM pro upstairs, so there is only about 1 meter of Cat 5e cable from Unraid to UDM Pro and 1 meter of cable from UDM Pro to PS3 and Rasberry Pi.

It’s driving me crazy, as I have spent a lot of $$$ and it’s not working. And no, it’s not due to movie format or anything, they play normally on my pc (without plex) and also on my Chromecasts, which are wireless. There is no 4k content that I am playing so far…