@gmoney63 Below is setup that I would propose in your case, assuming wireless bridge supports Deco Ethernet backhaul and provides stable link between buildings. For Main Deco I would suggest Deco X50...

Niplah wrote @Alexandre. it is a TCL 75" C845 4K UHD Mini LED QLED Google TV [2023] instruction booklet says it has 1gb speeds via Ethernet @Niplah I googled this model and it is very hard to find...

Niplah wrote @Alexandre. I just checked, the speed of the Ethernet port is 1 Gbps. @Niplah Please also provide brand name and model number of your TVs.

@Niplah You should check hardware specs of your TVs. Most Smart TVs come with 100Mbps Ethernet port.

@Stricko Yes, they do.

@gmoney63 In that case, I would suggest to return TP-Link Archer router back to seller for refund. It will not join Deco mesh. I would recommend the following setup: use ISP provided router (Telco or...