Originally Posted by Yadao
Maybe it's still using Wi-Fi. Try turning on airplane mode then plugging in your adapter. It may take some time to recognize the Ethernet. You will see an icon in the notification bar when it does that looks like this: <--->
Ah yeah, I did all that. WiFi actually is limited by the 2x2 AC router, it gives me a bit more than 300 Mbps down. Just wanted to know if you could confirm 900+ Mbps on the January build, cause I might need to return this adapter if there's another one (presumably with another chipset) that works at actual Gb speeds.
But also, I've never gotten anything resembling USB 3 speeds through this port either, so it could be the phone or Android.