@David-TP thank you for the input. Yes, there are at least 5 other 2.5GHz networks around our area, so interference is possible. Do I understand it correctly, that you would recommend the...

Hi, I am quite new to network design and totally new to extending reach of a router, which is the aim of my question. We have 2x ASUS RT-AX86U Pro Routers. The "Router A" is on the ground level of a...