Server Version#: 1.21.1.3830
Player Version#: 5.6.1
(File removed)
Hello. I’m having a buffering issue while playing 4K Remux movies. In order to test if the problem is caused by my smart TV which is connected to the internet by an ethernet cable just like my PC is, I tried playing the same file on Windows 10 Plex app, and it played without any buffering issues.
The info of the media file I’m trying to play is above. Duration 2:12:46
Bitrate 70866 kbps
Width 3840
Height 2160
Aspect Ratio 1.78
Video Resolution 4K
Container MKV
Video Frame Rate 24p
Video Profile main 10
I thought that maybe this problem is caused by the audio track, so I selected the lowest quality available which is AC3 640 kbps , yet it buffered again. My TV model is LG 49SJ800V-ZB. Thanks in advance.
The Ethernet port on the TV supports 100 Mbps, not 1 Gbps.
Try WiFi if you’ve a strong 5 GHz signal at the TV location. 2.4 GHz WiFi will not be fast enough.
If the WiFi coverage in that area is insufficient, you could add an access point, mesh node, etc and use the Ethernet cable to connect it to your home network. If you do this, make sure the new device supports 802.11ac, aka WiFi 5 (I’ve a B7 OLED, it supports WiFi 5, your LG most likely does as well).
You might also try a USB3 to Gigabit Ethernet adapter, connected to the USB3 port on your TV. See this thread:
Thanks for your answers. I have a 75 mbps internet connection and both my PC and TV are connected to the same router. The video is not transcoding. If the problem stemmed from the internet connection, I wouldn’t be able to stream from my PC without problems, right?
As far as I know Plex for webOS doesn’t support Dolby Vision. But the movie I have is in Dolby Vision. In the beginning of the playback, on the top right corner, the HDR logo is shown for a second. Is it possible that it buffers because of the lack of DV support?
If the TV and your Plex server are on the same local network (i.e. you are not streaming remotely), the speed of your internet connection has no bearing on things.
Dolby Vision support in Plex is a work in progress.
The LG Plex app does support Dolby Vision, but only certain profiles. If your media is not in a supported profile, then Plex will fall back to playing it in standard HDR.
If the Plex server is direct playing both the video and the audio, the buffering is probably due to the 100 Mbps Ethernet port on the TV.
The bitrate listed in Plex is the average bitrate for the entire movie.
As shown in the article linked by @Hitokiri, movies may burst above 100 Mbps with regularity.
Suggestion: Sort your movies by bitrate. Play the 4K HDR remux with the lowest average bitrate, where both the audio and video direct play. It will be the least likely to burst above 100 Mbps. Make sure subtitles are turned off at this time, as they can cause video transcoding.
Does the movie buffer during playback?
What is the server CPU utilization during playback, both total utilization and for the Plex processes. Plex should use very little CPU if direct playing.
What is displayed in the Plex Dashboard. Please post a screenshot of the dashboard expanded to show both audio and video formats.
Please post the XML information for the movie. Save the information as a .txt file (right click, save as), as the forum does not support .xml attachments (or save as .xml & zip before attaching).
I’m sorry, I forgot to say that I set up Plex on a remote seedbox.
I’ve just tried to playback two movies. I’m adding the XML files and screenshots of the dashboard while I playback them. They are both direct playing.
The result is Leon buffered on both my PC and TV, while Ex Machina buffered only on TV.
You’ll buffer when streaming a 70 Mbps movie on a 75 Mbps connection.
There is zero quality control on the Internet. There is no guarantee you have a constant 75 Mbps end to end from your server. If your ISP is like mine, they don’t even guarantee the 75 Mbps local speed. It is just a target.
For something like this you’re better off setting up a Plex server at home. It doesn’t need to hold all your movies, just the high bit-rate ones.
I generally get around 70 mbps, but it’s not stable and not enough as you said. I appreciate your time and effort to help. Thanks and have a nice day to you all.
