@chrisgordon75 You can do some tests yourself.
If you can, use a wired connection or powerline adapters. Glass does everthing across your local internal network and the internet. Many people have very good connections into the house but marginal wifi signal around their house. I've found all the Sky wifi enabled kit I've had never does a good job, my experience only and it's been fine for many others.
If you're on Wifi try to run a wifi analyser tool at the location where your Glass devices are to see what the signal strengh is at that location. Wifi can be subject to all sorts of interference, and when using a system like that Glass which is highly reliant on stable wifi this could be a very big problem.
I'd highly recommend investing in a quality mesh if you can't hardwire your kit directly to a router. I think many of the issues here are caused by poor wifi in the home rather than real Glass issues, and would thing that black screens are very much in that category.
FWIW, I have my Glass kit all hardwired into my mesh poionts and never get the black screen issues seen on this forum.
