Hi , I currently have a hub6 and super fast fibre 2 broadband . We struggle with WiFi upstairs and considered buying some whole home discs but the more I read about the smarthub 2 and it’s one disc the more I’m tempted towards that . BT state to upgrade will cost an extra £15 a month , I could buy a hub and disc , unused off eBay for around £100 . Could anyone advise if I can just plug a smart hub 2 in and it will work with my current set up ? The reason I ask is that BT stated they would send an engineer round if I upgraded .