Most new drivers are in the kernel 5.15+. However, for the newest drivers:
sudo apt update
sudo apt install git dkms build-essential
git clone https://github.com/aircrack-ng/rtl8812au.git
cd rtl8812au
sudo make dkms_install
Reboot. Your Aigital adapter should now work with monitor mode and packet injection (for penetration testing) if supported.
Before downloading any software, you must identify your specific Aigital model. Aigital produces several variants:
These are textbook signs of a corrupted or legacy driver. A clean installation of the new driver resolves these issues instantly.