I've just got the hub 4 but have pretty patchy WiFi coverage over a 4 story house.
To resolve I've got the 3 pack of BT whole home disks. Set them up no problem and the coverage has been good.
I haven't been able to turn the hub wifi off even when following guides etc.i think it's causing some issues and I now want to turn off the WiFi and set the hub up as a modem. Should that be done before I set up the disks or can it be done with them up and running now?
To add complexity I've got sky q. Still have sky broadband running alongside virgin until I can get a solid setup on the q and 2 minis on my virgin fibre.
afaik the bt discs are just access points, there's no router capability.. so you'll need a router if you're gonna put the hub in modem mode..
unfortunately, there's a bug/feature in teh current hub software that re-enables the wifi broadcast even when disabled.. not sure if it will ever be fixed (it may be deliberate to resolve other issues /shrug)