Thank you so much for your replies @yves_b Interesting...I have not had this suggestion yet. Thank you for opening my eyes to another possible solution. Our router is the Arris SB8200 Surfboard. I'm...

@yves_b If I understand well, everything works well when a device is close to any of the 3 Decos, but you have "dead zone" inside your house, where no device is working. Is that correct? Not quite -...

I'm blaming something in our setup process....but we just replaced our Orbi router/satellite system and Motorola modem with the following: Have the TP-Link Deco XE5300 Mesh Wi-Fi (Hardware version/US...