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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05-01-2017 07:29 AM
What WiFi router do you have?
Still I would recommend Ethernet cable if possible as WiFi is really not suitable for high bitrate video streaming it introduces lag (data is encrypted/decrypted by WiFi password), speed level is varying a lot (54 Mbps/48 Mbps/36 Mbps/24 Mbps etc) , additional unnecessary layer on top of ethernet. Too much issues which can be easily solved by switching to ethernet cable.
05-01-2017 08:13 AM
05-01-2017 09:52 AM
Well I have had a reply from Samsung I can post it if required...
But I have a temporary fix... I have also sent this to Samsung and awaiting their reply but this is what I have done...
I have used a TP-Link wifi range extender (model no TL-WA850RE) this has a low output of only 300 Mbps and plugged in via an Ethernet cable to the TV so far in the test that I have made it seem to be working with 4K videos from YouTube playing in 4K with no buffering.
I have asked Samsung to comment on this as surely a smart TV costing £799 should not need a wifi extender to make it work when all other wireless items in the house are all fine much much further away from my router (my iPhone 6S plus will play YouTube videos in the garden at the rear of my house more than a 100 feet away through many walls).
Maybe more to come on this?
05-01-2017 10:47 AM - last edited 05-01-2017 10:52 AM
I doubt that Iphone 6S streams 4K video. Neverless it is not the booster model that I needed but main Wifi Hub. Is it also set to 300Mbps? I would recommend to disable 40Mhz channel as 300Mbs is very unrealiable and actually not needed as you dont'have 300Mbs Internet from ISP anyway.
Alternatively if you don't have option to install Ethernet cable you could try to use Powerline network - PLC adapters. It is ethernet over existing powerlines in house and it will have faster and more reliable speeds.
10-01-2017 06:55 PM
I'm in agreement with Oto here. If you want to make the most of streaming 4k content, you really want to have the most stable connection available you, the trusty cable -mapping over 8 million pixels is a lot of data. PLC adaptors are also great ways to get signal in the really awkward spots in your house.
10-01-2017 07:15 PM
This was just an informative post. I've gotten powerlines that give me the 100MB+ speed I wanted. But you need only to be receiving 25MB at to get 4K YouTube. Before the powerlines I was getting less than 1MB and so was barely able to stream 1080p.
11-01-2017 11:37 AM
11-01-2017 11:47 AM
04-10-2017 11:42 PM
@Safariman wrote:Well I have had a reply from Samsung I can post it if required...
Hi Safariman - Can you post their reply?
i have the same issue of not being able to stream 4K off you tube.
my TV is connected via Ethernet and my internet download speed is 95mbps.
i can only get 1080p on you tube even on verified 4K videos.
my model number is HU9000WXXY
05-10-2017 06:45 AM
Can you check speed in fast.com or in Netflix app?
P.S. Spedtest.net seems to have issues with reliable measurements for Tizen browsers.