Stefan Olteanu

@MartleaI think the memory is not the problem, is the software. It seems that it needs to buffer a lot to keep the video fluent. This will have to be revised and limit the buffer operation to a safe value. Is not that it can't play the content, is about the handling. Strangely, I tried to use ethernet connection which is faster, but the problem is worse. I will try experimenting with an even faster connection than the one I currently have. 

Also, the Netflix app worked good before the firmware upgrade so it can't be the hardware. Will try to see tomorrow if it still works with the new upgrade.

YouTube app and also youtube.com on tv browser

Same problem with new 2017 43uj6307 tv. Even after the software update, version: 04.70.04

I've tried to connect via ethernet cable for better speed to maybe avoid to much buffering: same result, crash and restart!

The problem seems to be worse with 4k video but also with hd video