$ sudo apt update
$ sudo apt upgrade
$ sudo reboot
$ sudo apt install linux-headers-$(uname -r)
$ sudo apt install build-essential dkms git
$ git clone https://github.com/aircrack-ng/rtl8812au.git
$ cd rtl8812au/
$ make
$ sudo make install
$ sudo reboot
How to uninstall driver?
$ cd rtl8812au/
$ sudo make uninstall
$ make clean
$ sudo reboot
How about RPI?
Please help read belllow link for reference.
https://github.com/aircrack-ng/rtl8812au
另外 如果信號不好,或者5g連不上,那麼要查看7811的硬件特性和路由器是否匹配
sudo iw dev or sudo iw phy
查看哪個5g頻段的收發能力最好(dbm最高),然後設置下路由器。