Thanks for your input! I have a hard time to blame it on the hardware as well... tried the other "pucks" as well.. no difference there. It's a pity, I am actually considering to return them even...

Hi, running the Deco M3 (3 of them) as access points , 2 with ethernet backhaul, one wifi backhaul. Wifi speeds are ok I guess (around 200-250 Mbit). But the interesting part is when I connect wired...