@westover69 In Deco mesh, Satellites will strongly prefer to connect to Main Deco. If you place Main Deco to the basement, second floor Satellite Deco will try connecting to it even if WiFi link...

@19_pc_85 If you check Deco E4 specs for Ethernet ports under Hardware section, you will find that its Ethernet ports are 100Mbps (Fast Ethernet), not gigabit. This is what limits your speed test...

@HughOwen Also, check Deco X55 price and availability. Just like X50 it has three Ethernet ports, otherwise quite similar to X60 which has two Ethernet ports.

@HughOwen If you are going to connect two Deco nodes with Ethernet cable, both will deliver same or very similar WiFi speed. Your plan should work. I am not sure which Deco model you are talking...

@Gravoren It seems to me you would prefer to daisy chain your Deco units. This will work. Not the best option, but workable. 4 gigabit Internet might not have been the best example why it is not the...

@thelinkuser I see. Then, follow what I suggested initially.