@Bruno74 Each Satellite Deco hop will cut WiFi speed in half. If you start with 750Mbps on Main Deco, you should expect to get reduced speeds on Sat 1 and Sat 2 exactly as you have. Sat 3 is a bit of...

@PedroMP They will not. Deco PX50 use different powerline protocol than P9, these two protocols are incompatible.

summoned wrote @Alexandre., I am completely aware that this is doable and if I do it I'm sure that I will have internet connection in House 2. However, this experiment would not prove or disprove...

@Jepps Sorry, I misread you. Yes, you will need one more Deco M4.

@Jepps You said you have one M4 downstairs and another M4 upstairs. You can keep it that way. Is one Deco unit not enough upstairs?

@Jepps Deco mesh will not share WiFi with router. What you have now is two separate independent WiFi networks: one from router, another from Deco mesh. The right solution is to deactivate WiFi on the...