How to Install Realtek rtl8821AU WiFi Driver on Ubuntu 24.04

GNU/Linux Ubuntu 24.04 Realtek rtl8821AU Driver Setup – Step-by-step Guide

Hi! The Tutorial shows you Step-by-Step How to Install Realtek rtl8821AU WiFi Driver for Ubuntu 24.04 Noble LTS GNU/Linux.

Especially relevant: this Realtek rtl8821AU Driver Ubuntu 24.04 Setup should be working also after a Kernel Upgrade with the Dkms integration.

Moreover, from the Realtek Support Driver Website comes out that it may be working for all the following Chipsets:

• RTL8192EU
• RTL8811AU
• RTL8811CU
• RTL8812AU
• RTL8812BU
• RTL8814AU
• RTL8821AU

Finally, this Setup is Valid for All the Ubuntu-Based Distros like:

• Linux Mint
• Zorin OS
• Lubuntu
• Elementary OS
• Kde Neon
• Pop_OS!
• Xubuntu
• Linux Lite
• Bodhi
• Puppy
• Kubuntu
• LXLE
• Trisquel
• Voyager
• feren OS
• Peppermint
• Linux Ultimate Edition
(You may just need to Discover what’s the Parent Release)

1. 1. Downloading Realtek rtl8821AU Driver

   (Bewilderment can arise because this setup is making use of the rtl8812AU Code)
   Download Realtek rtl8821AU Driver for Ubuntu GNU/Linux

   Get Realtek rtl8821AU Driver for Ubuntu

   Realtek rtl8821AU Driver Source Realtek for Ubuntu

   Or better Clone it with Git.
   Especially relevant: in the New Posts Revision I have included a greate Alternative to the default gnab Driver.
   So, in case of the aircrack-ng choice then follow the Github Developer Documentation to setup it.
   Especially relevant: the Aircrack-ng release include support for “Monitor mode” and “Frame injection“!

2. 2. Installing Dependencies

   Then to Install Required Packages
   First, preferably Upgrade your System with:

   sudo apt update && sudo apt upgrade

   In this case then Reboot it using:

   sudo reboot

   Then run:

   sudo apt install build-essential linux-headers-$(uname -r) dkms unzip git

   Authenticate with the User Admin Pass.