28-12-2016 12:13 PM
Some people, like myself may have experienced issues with 4K content on their 4K TVs on the YouTube app. I have the KU6400 and the recent update brought HDR to the YouTube app. Though 4K content is available on YouTube it only seems to play in 1080p. Apparently this has to do with Internet speeds. You have to be receiving 25MB speeds to be able to watch 4K on YouTube.
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05-10-2017 06:52 AM
As per fast.com my download speed is 91mbps
28-03-2018 10:49 PM
i have mu8000 bought 3 months ago. i have same issue youtube work on very low quilty. if i use my Roku youbube app it work great even 4k. but samsung youtube app has somekind issue. please help if anyone know anything.
29-03-2018 07:17 AM
I think the TVs WiFi reception is poor because nothing I did worked when trying to use it on WiFi so I ran a cat6 Ethernet cable directly from my router to the TV and it fixed the problem I now get full Wi-fi speed at the TV. Cable is very cheap if you can go that route. Hope this has helped.
21-10-2018 05:51 PM
Samsung series 2, januar 2017. TV is 2 meters from my Netgear Orbi Main box. 500 Mbps Internett. Download speed on iphone 450mbps 4m from router. Wifi in my Home is not the problem. Netflix app om TV is great with 4K via wifi. YouTube is not.
27-12-2018 07:20 PM
It seems if you connected the cable directly to your tv, then you are no longer using wi-fi???
31-10-2019 05:29 PM
This is not a problem of speed Internet, this a problem of youtube, dont run 4K on samsung TV's and Apple Tv 4K.
05-05-2020 12:12 AM
Hi, hope your well. This is the exact problem i'm having with my Samsung. Its not playing YouTube videos on 4k. Can you please help me what do I do? My internet speed is great im received around 170mbps. Do I change the ethernet cable to cat8 manbey?
17-12-2020 08:57 PM
Hi, Its the app some use safari new TV's use musem its the software,
18-12-2020 09:56 AM
Thanks for the info will give it a try later
15-01-2021 09:12 AM
The TVs WiFi reception is not poor, if you check a YouTube video with a 1080p resolution and enable "stats for nerds". At least in my case on the "connection speed" it shows 50+Mbps and on the "buffer health" it shows +60 seconds. But when I change it to 4k, everything stops, connection speed goes to 0, buffer health goes to 0, network activity goes to 0.
The last Samsung firmware broke the YouTube app, I have zero issues with Netflix, Apple TV, Amazon Prime Video.