How to Install Realtek Rtl8821CE Driver Offline on Debian Bullseye – Step-by-step

Installing Driver

7. 7. Downloading Realtek rtl8821CE Driver

   Download Realtek Driver in Debian GNU/Linux

   Get Realtek Wi-fi Driver in Debian

   Realtek Driver Source Realtek for Debian

8. 8. Extracting Realtek rtl8821CE Driver

   And then Extract Driver Archive into /tmp
   Possibly Double-Click/Right-Click on Package and Open with Archive Manager:
   
   Or from Command Line:

   unzip -d /tmp/ *master.zip

9. 9. Removing Apt Driver

   First, to Remove rtl8821CE DKMS Apt Driver
   This only if it was installed, in any case try:

   sudo apt remove --purge rtl8821ce-dkms

   And if yes then reboot with:

   sudo reboot

10. 10. Installing Realtek rtl8821CE Driver

    Now to Install Wi-fi Driver for Debian
    Access the Target folder, in case of a Git Checkout modifies the Path accordingly:

    cd /tmp/*master

    Or whatever else the Git Archive location.
    And then to Setup it play:

    sudo ./dkms-install.sh

    Last, in case of Troubles with Dkms you may Try with an Ordinary “make” “sudo make install” Setup.

11. 8. Loading Realtek rtl8821CE Driver

    Now to Load Realtek Driver into Debian’s Kernel
    Try to Load it with the following Command:

    sudo modprobe 8821ce

    Possibly try to Reboot to Activate your Device:

    sudo reboot

So Now I’m truly Happy if My Guide could Help you to Install Realtek rtl8821CE Driver on Debian Bullseye!