Had to spend some time searching for these drivers (these are tested to work fine on Windows Server 2012 R2):


For the Intel AC-3160 WiFi chipset download and install Intel® PROSet/Wireless Software, version


For the Realtek RTL8187 chipset based USB adapters use Windows 7 (yes - 7!) 64-bit driver, version 62.1182.0331.2010 (03/31/2010) - look for net8187b.inf to install.


By the way, make sure that you have enabled the WLAN feature!