Cheers guys.
@ChrisD. - No Sonos but have got a few Apple Homepod's dotted around and iirc, they create their own network so perhaps it's a similar issue. Can you remember what you ended up doing with Sonos devices to resolve it all?
@ash888 - Haven't tried the separate SSID/network solution yet because as you can imagine, with the Q boxes falling over it's going down like a lead balloon with the rest of the household so reverted back to the Sky hub for the time being
But will definitely give that whirl when i get a spare hour or so.
Did you end up disabling 5GHz on the Q boxes and are you connecting any of them to ethernet or is it all WiFi only? And have you noticed any issues with the Q boxes being connected to only 2.4GHz, like slow playback etc?
Signal is pretty good from what i can tell though, seems about on par with the Sky hub from quickly roaming the house when it was in.