@Alexandre. I apologize for the confusion. The modem is plugged into one of the Deco M5 units. The other port in that main unit has a long ethernet cable that runs along the basement ceiling to the...

@Alexandre. Well the only deco that has issues with wifi is the one in the office, which is plugged into the main deco downstairs which goes to the modem. I don't have issues when I'm on that side of...

@Alexandre. 1.) I believe so. 2.) It reports 'everything looks good'. 3.) Yes, I've tried multiple mobile devices. The deco M5 is plugged into the modem directly. The other port on the deco M5 is...

Long story short, I have 4 Deco M5 units in the house. 3 of them work fantastic but I have one that is plugged in directly with cable that runs in the basement to the other side of the house. The...