Only just set my system up and could do with some advice from you guys in the know . My Kcom technicolour router has my main Deco plugged into it , one other in the hall , other in far bedroom but as...

Just moved into a small apartment/flat: living room, hallway with office and bedroom etc opening off it . KCOM router with Deco plugged in, one in the hallway and one in bedroom at end of hallway....