Qe55qn90b Buffering stream services

[k1s]

My QE55QN90B keeps buffering streaming services every few minutes

It happens with:  

BBC iPlayer

Netflix

Amazon Prime

ITV X

Disney+

BT Sport

Internet Speed 75mps down 28 up. None of these services buffers when run through a laptop via Wifi or PC via ethernet or on other (LG) TVs in the same network.

It's connected via a tested Cat 6 cable to the router

The TV's SmartHub tests all pass

I've tried different ethernet cables

I've rebooted the router

I've reset the Smart Hub

I've factory reset the TV

Firmware is 1520.7 BT-S

Any ideas what's wrong with the TV?

[TvMan1001]

Something to try. Tether your phone to tv as a wi fi mobile hotspot. This solved my tv app issues and indicates there is an issue with my Samsung Q80 tv and network, most likely router.

[Badgerbob]

My TV has started doing this over the last couple of weeks! It was fine before then. I’ve tried everything but no joy. Streams fine from Amazon box and BT TV; it just effects TV apps. Found a solution yet k1s?

[k1s]

No, still not fixed. 

Samsung support dialled into remotely, poked about a bit and then asked me to 'monitor the situation'.  They then called (randomly, during the day when I was out, refusing to pre-schedule ), didn't reach me and declared the support ticket resolved.

[Badgerbob]

Typical Samsung! It’s so frustrating isn’t it? It just makes no sense at all