# PLEX remote playback 4K freezes

**URL:** <https://forums.plex.tv/t/plex-remote-playback-4k-freezes/799067>\
**Category:** Plex Media Server\
**Tags:** server-windows\
**Created:** [June 30, 2022, 3:51am UTC](https://forums.plex.tv/t/plex-remote-playback-4k-freezes/799067 "2022-06-30T03:51:53Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Herman98521](https://avatars.discourse-cdn.com/v4/letter/h/e8c25b/32.png) [@Herman98521](https://forums.plex.tv/u/Herman98521)\
**Post date:** [June 30, 2022, 3:51am UTC](https://forums.plex.tv/t/plex-remote-playback-4k-freezes/799067/1 "2022-06-30T03:51:53Z")

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Hello, why is my external network remote client very stuck when playing 4K video.  
How do I need to set it up?  
The upstream bandwidth is 60 Mb/s, the plexpass is not purchased, and the slice source is the size: 54GB, 57.3M

 ![lALPJx8ZxIi5qpvNBwDNAzw_828_1792](https://global.discourse-cdn.com/plex/original/4X/a/c/8/ac853298f31ce268256ddacfb7c80faa8d05754d.jpeg)  
BPS, MKV. Video: 3840x2160, 23.976fps, 54.1mbps, hevc5.1 main10.  
Do I need to purchase a plexpass for hardware decoding so that the remote client can play smoothly? Or is it caused by insufficient upload bandwidth?

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**Author:** ![tom80H](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tom80h/32/19753_2.png) [@tom80H](https://forums.plex.tv/u/tom80H)\
**Post date:** [June 30, 2022, 4:51am UTC](https://forums.plex.tv/t/plex-remote-playback-4k-freezes/799067/2 "2022-06-30T04:51:30Z")

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In this case it’s most likely caused by the upload bandwidth. The file has an average bitrate of ~54 Mbps but the max. bitrate can easily be 50-75% higher. Because of that, Plex will attempt to transcode your file. If it’s not powerful enough to transcode in real-time, you’ll experience a lot of buffering.

HW accelerated transcoding might help in some cases but your root cause seems to be the limited internet upload speed.

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**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\
**Post date:** [September 28, 2022, 4:52am UTC](https://forums.plex.tv/t/plex-remote-playback-4k-freezes/799067/3 "2022-09-28T04:52:14Z")

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