I have been trying to resolve this issue for three hours today and still no luck. I have the SAMSUNG - QE50Q60TAUXXU 50" Smart 4K Ultra HD HDR QLED TV and when you use the Apps: Netflix, Prime, 4OD etc the sound cuts out after a few minutes and the app freezes/boots me out.
I spent three hours trying resolve online and after two factory and app resets, changing the DNS code, we still have no luck.
We do not have any external speakers. It's not our internet as the Samsung TV in the bedroom works fine when watching Netflix etc.
I have no idea! It's a Sky Broadband router which is quite close to the TV. Samsung told me to change the DNS on the TV but not the router. It's on all Apps. The sound goes or each App boots you out after seconds.