Hello Team!

I just installed my Deco M5...and had a few questions.  I should state that I have AT&T Fiber (1000mbps max), and have the main deco unit connected through the AT&T-provided Motorola BGW210.  I'm not sure if that's how I was supposed to do it, but I think so...?  Anyway...included that info just in case that's important to my questions:

1) When prompted to name my new network and create a password...I did...and that new network seems to be working.  However, so are my previous two networks (dual band...5ghz / 2.4ghz).  Should that be the case?  I now have 3 networks?  Wouldn't that dilute the strength of the new mesh network as well as one or both of the other two?

2) Is my new Deco M5 network 5ghz or 2.4ghz?  

3) After doing before/after speed tests:

   a) Core Deco (upstairs) - speeds about the same.

   b) 2nd Deco (main floor) - speeds actually considerably lower.

   c) 3rd Deco (basement) - speeds improved considerably.  

...that doesn't seem........possible.  I'd love anyone's thoughts on that.

Again, the setup via the Motorola unit felt odd to me - apparently it's a "gateway" though, and that's what the internet told me to do (i tried connecting directly from the box the fiber connected to in the house, but it never connected....when i did it this way, it worked, but with the above issues).  

Thank you folks...any input appreciated.

Bill