I bought a ALFA AWUS036ACH USB wireless adapter and had no problem figuring out how to install the custom drivers that allowed packet injection (https://github.com/astsam/rtl8812au) on 2017.1, but now I am having problems installing/finding a driver that allows injection on 2017.2. I can install the realtek-rtl88xx12-dkms on2017.2 and get the adapter working, but does not allow packet injection. If anyone has a solution, I'd appreciate it. Thanks.