After a bit of research I'm thinking of adding a Deco X20 3 pack to my house which is 3 storeys with a Deco on each floor. My Vodafone THG3000 is in the centre level and I read that I need to turn off

I currently have a TP-WPA8630P kit which the 8630 is in the attic as I have some stuff up there which I can't get a LAN cable too. Anyway, my house is a 3 storey townhouse and my router is a Vodafone