ASUS USB-AC55 Driver Installation in Ubuntu 20.04

Installing

2. 2. Updating System

   So first, best to Update System
   Running:

   sudo apt update && sudo apt upgrade

   In case of a New Kernel Setup then Reboot with:

   sudo reboot now

3. 3. Loading Driver

   Then to Load MediaTek MT76 Kernel Module
   Usually Automatically loaded at Startup!
   But in case, simply play:

   sudo modprobe mt76

   Or for a USB Device try with:

   sudo modprobe mt76-usb

   To know that with Kernel 5.9 also a SDIO Socket version is introduced:

   sudo modprobe mt76-sdio

   Then restart the Network Manager Service play:

   sudo service network-manager restart

   Possibly, try also to unplug and replug in your Adapter.