@peterfreeth Then, please run the following test. Power off switch. Connect single client, either NAS or PC, directly to the second Ethernet port of Satellite Deco. client -> Satellite Deco -> Main...

@peterfreeth Please check if your Satellite Deco connected to the switch the following way:

fhreis wrote Hi @Alexandre. The others maintain as Ethernet Backhaul. @fhreis If you have something else wired to that same switch, would you please do the following test for me: 1. Power off all...

@peterfreeth I do not want to appear nitpicking, but Deco M5 has two Ethernet ports. You can't have PC, NAS and Ethernet backhaul cable connected directly to same M5, that would require three...

@fhreis What will happen if you power off Satellite Deco which does not recognize Ethernet backhaul: will another Satellite switch to WiFi backhaul or not?

@MichaelArn I start thinking that your Easybox does not run as a router, otherwise Xbox would have complained of "Double NAT detected." This is what you can do: Change Easybox to its original...