Hello. I have Internet connection from AT&T at 1 Gbps, coming in a modem/router model BGW-320. I live in a two-story home of about 3400 sqft. Using only the wifi from the main router I can get wifi speeds of about 400-500 Mbps which is pretty good. But I don't have total coverage, especially in the backyard.

So, to solve the issue I have a Deco Mesh network that I've been using but still could not figure out a good way to configure that for both good speeds and good coverage.

I have tried Router and AP modes, moved the units around a lot, and tried to hard wire the units when possible.

My units: 1xS4, 1xM4R (both with Ethernet ports), and 3x wifi only M3W.

What I've tried recently:

Router mode: ISP in port forward => M4R hard wired => S4 hard wired => M3W units via wifi spread in several different ways. Results: max about 200-300 Mbps when close to the hard wired units, M3W seem not to help a lot (or nothing). Connection in the backyard is very poor, even when I put the wifi units very close to it.

AP mode: ISP => M4R and S4 => M3W units via wifi spread in several different ways. Note that here I'm using the two hard wired units connected directly to the ISP router, not to each other. Results: Even poor connection, the S4 shows as Wi-Fi instead of Ethernet and the M3W units are totally offline in the app.

Is it normal the hard wired non main unit to show as wifi in this second configuration? Any ideas of what could I do differently?