I have a TP-link archer t4u ac1200 which isn't working on Ubuntu. I tried almost all the drivers I could find on the internet but they aren't working. Reinstalled the server 2 times now for a fresh start.
When I type lsusb I see the USB listed in the list. But when I type iwconfig I don't see any wlan.
nmcli radio wifi on didn't work also. lsusb output image
Edit: added lsusb screenshot
Please unplug the device. Next, with a working internet connection by ethernet, tethering or whatever means possible, open a terminal and do:
sudo apt update
sudo apt install wireless-tools wpasupplicant
In our chat, we determined that you have a driver rtl8812au loaded on your system and that it was, upon examining dmesg, throwing numerous errors. We blacklisted it.
I recommended that you try another, more current version:
wget https://github.com/aircrack-ng/rtl8812au/archive/v5.6.4.2.zip
unzip v5.6.4.2.zip
cd rtl8812au-5.6.4.2/
sudo make dkms_install
Reboot
After the reboot, the wireless was working. Next, please configure netplan as outlined in the example:
cat /usr/share/doc/netplan/examples/wireless.yaml
