@woozle Thank you very much, you have understood my needs and problem correctly and the salesperson has misinformed me. I have in tried to set up the new R5 wirelessly, normally I come to a solution...

I have installed an Archer R5 as router and 2x E5 as extenders. It works fine. However, I need one of my devices to be wired, but there are no ethernet ports on the E5. The salesperson recommended me...