Hi there

Hoping I can get some additional information as I know I'm doing something wrong. My house is a 2 storey with a basement. 

Old Setup: Modem/Router AIO (basement) --> Switch (basement) --> 3x Wall Jacks

My house is wired so I have a LAN jack in the living room, office and masters bedroom.

I have my PC hardwired to office outlet

I have my TV hardwired to living room outlet

Nothing is connected to Masters Bedroom

Since my modem/router is in the basement - you can just imagine how great my WIFI is on the 2nd floor. My internet speeds is advertised as 1Gbps Down and 750 Mbps Up. I know I'm not going to get that consistently.

Now I installed the M4 as such

New Setup: Modem/Router AIO (basement) --> Switch (basement) --> 3 Wall Jacks + 1x Deco Main (basement)

Now I wanted to install Deco2 in the wall jack in the living room (first floor) and Deco3 in the wall jack in the masters bedroom (second floor). 

I don't know if by hooking it up to a switch is messing it up but on WIFI - im getting slower speeds than what I was getting when I was relying on my AIO. I tried router mode OR AP mode. 

Any suggestions? Not really good with networking so I dont know if I should be doing anything with my router/modem settings etc. I've been testing the last 4 hours so im a bit tired. I will test again tomorrow.

Ideally - I just want my router/modem connected the switch. Then have the M4 units as APs in the 3 available lan jacks I have. But I can't seem to get it to work. I get a red blinking light or the app just says it cant find things.

Thanks in advance for the help