https://askubuntu.com/questions/1025695/netgear-a7000-on-ubuntu-16-04-not-working
sudo apt-get update
sudo apt-get install git dkms
git clone https://github.com/zebulon2/rtl8814au.git
sudo dkms add ./rtl8814au
sudo dkms build -m rtl8814au -v 4.3.21
sudo dkms install -m rtl8814au -v 4.3.21