Stability issues with Canon R6

I don't know if anyone can offer any guidance with this, but I've been trialling Capture One this past month on both my Windows Desktop and Laptop and I have the same issue on both devices.

I use the official Tether Tools cable, although I started out with a couple of none branded USB-C cables. 

The camera connects perfectly when Capture One first loads and the first 4 or 5 image captures show in the gallery, but then it stops showing any further image captures. It makes the sound as if it is capturing but no new images appear. At that same point the live view freezes.

All I have been able to do is close Capture One and restart it. Again, it all works fine for a few minutes before it stops showing new captures in the gallery and the live view freezes.

I have removed the SD cards from the camera and I change the capture one preferences so only "canon" is ticked.

Are there any other suggestions for settings that I can change either in camera, or capture one.

I've watched a lot of Youtube demos and I've not seen anyone else with similar connection issues.

Many thanks,
Mike