@TP-Link 1) I've had this deco installed for about 1 week. Its had the problem the whole time it seems. Again, only devices which only support 2.4ghz see the problem which is why we didn't notice it...

We have a home running 1 Deco M4 unit. We noticed that some phones couldn't connect to the network or saw extremely poor signal when even 1 meter away from the router. I think I figured out what is...