Press and hold down the command(⌘) + R button to start recovery mode.

Restart your laptop and wait till the keyboard and display become completely black.

How to Disable System Integrity Protection in Mac OS: If you want to give it a try, follow the steps mentioned below. With full excitement, I went to network preferences and clicked the + button, but there was no USB Ethernet interface listed. So without wasting time, I disabled it and restarted the machine. In my case, I had to purchase three adapters to get one functional.Īfter reading lots of how-to tutorials regarding this issue with Mac OS El Captain and Yosemite I came to know the problem has something to do with SIP (System Integrity Protection). If you see something like the above picture we are ready to go, otherwise get the cable replaced or get a new one. Go to About this Mac then check the USB tab in system report. Surely all the 3rd party adapters available on eBay are guaranteed to be functional.īefore starting banging your head check if the device is detected by your laptop. If you bought a cheap USB 2.0 to Ethernet adapter for your MacBook Air or MacBook Pro 13 inch 2015, then you know the simple plug and play does not work. Update: This trick also works with macOS High Sierra.

Driver lan to usb qts1081b