@TP-Link they are currently placed, one in the room above the main deco, then the third in the room adjacent where my machine is. There is no way to run an ethernet through the celing or walls the whole point is that it is wireless to these hubs. Can I not wire into the 3d Deco to recieve any boost in connect speed?

@chrisrmorg 

I can understand that this is what you have now:

[Main Deco]<---WiFi backhaul--->[Bedroom Deco]<---WiFi backhaul--->[Office Deco]

It is not clear what do you want to wire to where. Do you want to connect Bedroom and Office Decos by Ethernet cable, perhaps? Meaning:

[Main Deco]<---WiFi backhaul--->[Bedroom Deco]<---Ethernet cable--->[Office Deco]

or is it something else that you are asking?