NETGEAR A6100 AC600 WiFi Adapter Driver

The driver you compiled doesn't cover your device at all. You can confirm it with:

modinfo 8812au | grep 9052

Where '9052' is the last part of your usb.id:

ID 0846:9052 NetGear, Inc. A6100 AC600 DB Wireless Adapter [Realtek RTL8811AU]

The command will come back blank.

Let's remove it. In the terminal, navigate to the location of the file you downloaded, for an example, Downloads:

cd ~/Downloads/rtl8812AU
sudo make uninstall
cd ..
rm -rf rtl8812AU

Now let's download a better file:

sudo apt update
sudo apt install git
git clone https://github.com/abperiasamy/rtl8812AU_8821AU_linux.git
cd rtl8812AU_8821AU_linux
make
sudo make install

Check:

modinfo rtl8812au.ko | grep 9052

The terminal should return your device ID:

alias:          usb:v0846p9052d*dc*dsc*dp*ic*isc*ip*in*

Reboot and you should be all set.

The git repo recommended here doesn't seem to work with Linux kernel version >= 5.0, so this install uses a similar repo that has been updated for newer kernels. (Check your kernel version if you don't know with uname -r.) In fact, following the above guide was probably the cause of the otherwise inexplicable total system freezes I experienced. The following install procedure uses dkms (sudo apt-get install dkms), but, as the README explains (https://github.com/gnab/rtl8812au), you can also set up this driver similar to the above. Anyway, here's the install using dkms:

git clone https://github.com/gnab/rtl8812au.git
sudo dkms add ./rtl8812au
sudo dkms build 8812au/4.2.3
sudo dkms install 8812au/4.2.3

Check with: sudo dkms status

Automatically load at boot with: echo 8812au | sudo tee -a /etc/modules.

Adapted from: https://www.learningpenguin.net/2018/01/30/install-realtek-rtl8812au-wifi-driver-linux/ and the README of the repo.