@Alexandre. Thank you for all your advice :) It's strange, i looked several times during the day, and now, my 3 additional deco M4 are directly connected to the first one (connected to internet box)...

Hi, In my house, i have 4 deco M4. I don't know why, but one of the Deco is connecting to another one further. As you can see on this image, the number 3 is connected to base (number 1), but it...