@Alexandre. Thanks for your answer. I must say that based on the marketing, this was not obvious to me. Based on the marketing of the Deco M9 Plus I had the impression that a satellite used one 5Ghz...

My current setup consists of 3 Deco M9 Plus. Both satellites are connected to the main unit using a wireless connection. Close to the satellites I consistently get 350Mbps download speeds. However,...