ASUSTek Computer, Inc. USB-AC56 802.11a/b/g/n/ac Wireless Adapter [Realtek RTL8812AU] on Ubuntu

It frustrating that this driver isn’t included in linux, but its easy enough to setup.

Open Terminal Emulator

Run commands

sudo apt update
sudo apt install git build-essential

Download driver source

git clone https://github.com/aircrack-ng/rtl8812au.git

Compile and install

cd rtl8812au
make
sudo make install

Reboot your system and plug your adaptor in. Adaptor is ow avalible for use.