Yes and it seems the issue was with the network manager in Kali Linux 2.0. As a matter of fact, I can connect to the router for a very short period using my USB stick with a RTL8812AU. It's easier and faster when I set the adapter in monitor mode from my PC. I also found that the driver causes some issues when you plug your wireless dongle to the USB port of your computer. Because the driver can't access to the device at the moment when the PC boots and that prevents you to put the adapter into monitor mode by using iw dev wlan0 set txpower fixed 30mBm.
The network card should be working in Monitor mode, but with no connection it will revert to managed mode. Also, you can't turn it back into monitor mode because it says operation not permitted. My adapter will have the same issue if you try my drivers. It is somewhat confusing because the iw command that sends the signal into monitor mode will work with the same adapter. Equally confusing is the particular command \"iw dev wlan0 set txpower fixed 30mBm\" will not work in a managed mode. This command is perfectly valid in the MSI website. And the thing is, with airmon-ng you can set the txpower by this command. Why does the RTL8812BU disable this command from working when it is set into managed mode? What is the TX power set by this command? And why doesn't the iw dev command work if the adapter is currently in managed mode? 7211a4ac4a