Having problems seeing my wifi Ubuntu Gnome 16.04
Solution 1:
With a temporary working internet connection by ethernet, tethered or whatever means possible, please open a terminal and do:
sudo apt update
sudo apt install git
git clone https://github.com/diederikdehaas/rtl8812AU.git
cd rtl8812AU
make
sudo make install
sudo modprobe 8812au
You have compiled the driver for your current running kernel only. When Update Manager installs a later one, also known as linux-image, re-compile:
cd rtl8812AU
make clean
make
sudo make install
sudo modprobe 8812au