Installing Realtek RTL8821CE Driver to use the Wireless Network Interface in Ubuntu
If you dual boot your Laptop or PC with any other OS and you restart Ubuntu then it will show Error[Wireless connection is not present or no network devices are available]. This issue may happen also due to the installations of unwanted software in Ubuntu.
Problem: Wireless network (Wi-Fi) option is not available.
Follow the below steps to get back the Wi-Fi option on Ubuntu
Note: First connect a wired device to your laptop so that you can use internet services to follow further steps.
Step 1: Open Terminal using Ctrl+Alt+T.
Step 2: Update system packages using the following command.
sudo apt-get update
Step 3: Install the required packages using the following command.
sudo apt install git build-essential dkms
Step 4: Clone the Realtek RTL8821CE Driver using the following command.
git clone https://github.com/tomaspinho/rtl8821ce
Step 5: Move to the repository directory using the following command.
Step 6: Use the following command to make the script of dkms-installation executable.
chmod +x dkms-install.sh
Step 7: Make the dkms-remove script executable.
chmod +x dkms-remove.sh
Step 8: Execute the installation script using the below-mentioned command.
After doing these steps restart your PC, and now you can see that the wireless network option is available.
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