Android: ADB not responding. You can wait more, or kill “adb.exe”

Windows Only:

 

Open a command prompt with administration permission and type

netsh interface tcp set global autotuninglevel=disabled

Restart Your windows.

 

From: http://stackoverflow.com/questions/17851480/adb-not-responding-you-can-wait-more-or-kill-adb-exe-windows-8