I have a decent b/g/n/ac router and, when I am in the same room as the router, and connect via 5GHz WiFi, I max out my cable speeds (I get around 230 Mbps over WiFi)

both wireless router and wireless ap support 2 eth trunk and the speed is not different

Bridged the gap between my network drop and best wifi router location

From my reading, the problem seems to be that the devices can create electrical noise and that fouled our router

: IF you have a small area to cover, I'd recommend using a good AC WiFi router together with good AC adapter(s) on your devices