It seems that wireless ADB has more and more issues each time I update Android Studio. Using 2.1.1, I\'m now unable to connect to my tablet using the command:
I have attempted to use many solutions above to no avail and found some pretty simple solution that works for myself.
If you are using a real device to debug like me, you may check the device official website to download the android USB driver for your development environment.
I'm using Samsung phone to debug and using windows as development environment thus I went here, download the Android USB Drivers for Windows and run it.
It resolves my ADB problem.