I am having problems with my Hub 2. I keep on losing connection with my Sonos system and Ring doorbell. I can't keep on restarting my Hub and reconnecting my Ring and Sonos systems daily. Strangely enough my WiFi thermostat still communicates with my boiler.
have you tried using a wifi analyser on phone to see what networks are near you and channels in use then going to hub manager then wireless and changing your channels to a free or less congested channel