I got a generic USB to Ethernet adapter. Wasn't detected. Did what's mentioned here: http://inkandfeet.com/how-to-use-a-...rnet-adaptor-rd9700-on-mac-os-1011-el-capitan Its now being detected but shows different a MAC address each time in Network Utility. I have to submit my MAC address at the workplace for them to unblock. I'm trying to spoof it in terminal with sudo ifconfig en4 ether 00:09:ef:a8:c9:7e That doesn't work either. Plugged it into a Windows 10 computer (without installing any drivers) and it wasn't detected. Hope you guys can help here. Thanks.