I have noticed when I connect to my home network via wifi.. I can hit speeds upwards of 13 MiB/s ... easily..
BUT when I plugin and use a Apple Ethernet -> TB2 adapter... I cannot hit more than 11 MiB/s ..
I didn't care for a while but now that my apartment got new gigabit internet.. I am starting to wonder if the dongle supports its full potential?
The culprit was the wall ethernet wiring.. NOT the OS nor the adapter.. when I plugged straight into the router all works fine.