If you’re using Ubuntu and experiencing issues with your Realtek USB Wifi adapter, you’re not alone. Many users have reported problems with these devices, particularly those using the rtl8811au chipset. This article will guide you through several methods to troubleshoot and fix these issues.
Understanding the Problem
The problem often lies with the drivers for these devices. Ubuntu may not have the correct drivers installed by default, or the installed drivers may not be compatible with your specific device. This can result in your Wifi adapter not being recognized or not functioning correctly.
Solution 1: Using the Driver from Official Ubuntu Repositories
The first solution you can try is to install the driver from the official Ubuntu repositories. This driver is maintained by the Ubuntu team and is generally reliable.
To install the driver, open a terminal and run the following command:
sudo apt install rtl8812au-dkms
sudo command allows you to run commands with administrative privileges, while
apt is the package manager used by Ubuntu. The
install command tells
apt to install a package, and
rtl8812au-dkms is the name of the package you want to install.
After running this command, reboot your system and check if the Wifi adapter is recognized.
Solution 2: Using the Driver from the “gnab/rtl8812au” GitHub Repository
If the official driver doesn’t work for you, you can try using a driver from a GitHub repository. One such repository is “gnab/rtl8812au”.
To use this driver, you’ll need to clone the repository, compile the driver, and then install it. Here’s how you can do this:
- Open a terminal and run the following commands to clone the repository and navigate to the cloned directory:
git clone https://github.com/gnab/rtl8812au.git
- Compile the driver by running the
- Check if the driver compiled properly and works by running:
sudo insmod 8812au.ko
- Finally, install the driver with these commands:
sudo cp 8812au.ko /lib/modules/$(uname -r)/kernel/drivers/net/wireless
Solution 3: Using the Driver from the “morrownr/8814au” GitHub Repository
Another GitHub repository that provides a driver for the rtl8811au chipset is “morrownr/8814au”. You can visit the repository at https://github.com/morrownr/8814au and follow the instructions provided to install the driver.
Solution 4: Using the Driver Provided by Kali Linux
Kali Linux, a distribution designed for penetration testing, provides a package called “realtek-rtl88xxau-dkms” that may include a compatible driver for your chipset. You can find more information about this package on the Kali Linux package page at https://pkg.kali.org/pkg/realtek-rtl88xxau-dkms.
Driver compatibility can vary depending on the specific kernel version and distribution you are using. If none of the above solutions work, you may need to search for alternative drivers or consider reaching out to the manufacturer for support. Remember, troubleshooting is a process of elimination. Be patient and persistent, and you’ll likely find a solution that works for you.
You can check the chipset of your Realtek USB Wifi adapter by running the command
lsusb in the terminal and looking for the device ID. The rtl8811au chipset is usually identified by the device ID "0bda:8811".
If the driver from the official Ubuntu repositories doesn’t work, you can try using a driver from a GitHub repository, as mentioned in Solution 2 and Solution 3. Make sure to follow the instructions provided by the repository to properly install the driver.
To uninstall a driver that you installed from a GitHub repository, navigate to the cloned directory of the driver in the terminal and run the command
sudo make uninstall. This will remove the driver from your system.
The driver from the "gnab/rtl8812au" GitHub repository is primarily designed for the rtl8812au chipset. While it may work for some rtl8811au chipsets, it’s recommended to use the driver specifically designed for the rtl8811au chipset, such as the one from the "morrownr/8814au" repository.
You can check the kernel version by running the command
uname -r in the terminal. This will display the kernel version number.
Yes, it is possible to use the Realtek USB Wifi adapter on other Linux distributions. However, the driver compatibility and installation process may vary depending on the distribution. It’s recommended to search for specific instructions or drivers for your distribution if the provided solutions don’t work.