@David-TP Time to report back... It made no difference to the speed at all, so I've gone back to the original firmware. I'm really struggling to get even the main Deco to go above 160Mbps now. You...

@David-TP Thank you for this, it will definitely help as there's a door between the Decos that is sometimes closed and ultimately results in the Lounge Deco (2nd) ending up with a "Weak" connection...

Hopefully a simple answer... I've used three S4s since around 2020. Previously, in a compact 3 bed house; main Deco in the lounge (back of house), 2nd Deco in the dining room (front of house), and a...