Hi, I recently bought Deco XC75s (3 pack). 
I have 500mbps fibre to the router and was mostly fine with the Vodafone router, as it's in the hall just outside my office but I wanted to get wifi in the garden.

The XC75s is doing what I wanted in the most part with wifi now in the garden but my laptop, which hasn't moved and the router is in the same place on the VF router keeps losing throughput to the internet.

I haven't anything on the internal network to check throughput so not sure if this is a connection issue to router vs a XC75 throughput to internet issue.

A speed test on my laptop reaches over 500mbps and then, when on a Zoom call, I constantly get voice drops. I test again and lucky if I get 30mbps (which should be fine for Zoom still) but until I disable/enable the laptop wifi and reconnect it doesn't restore. I can do this 30 times a day!

I have selected my local Deco as the only Deco my laptop should connect to. My laptop is on the 5Ghz. The 6ghz is only being used for back haul.

I have no business VPN running.

I'd like to emphasize, this is not a internet issue and only occurred after implementing the Deco's

Please advise.