My Tapo C425 gives me a "network unstable, please try again" error when trying to watch a cloud video. I have to download the video to view it and even that takes some time.

I can see live view and detections and notifications work perfectly. If I switch the resolution from 2K to 750p it makes no difference and I still get the network error. 

On my indoor camera, Tapo C200, I can view cloud vidoes no problem and it's obviously linked to the same Tapo Account. The C425 is about 6 feet from the router set to 2.4 GHz where as my C200 is approx 15 feet away, also on 2.4GHz

I have removed the camera from the app and reset it - I have deleted the app and re-installed it and completed the C425 setup but the issue remains? 

I see from the forum there are multiple "network unstable, please try again" and there does not seem to be a fix?

Any advice would be great.