Before of begin with installation may you need to run this command to update to download the package lists from the repositories and "updates" them to get information on the newest versions.

sudo apt-get update

The next command is used for install numerous packages and tools for compiling/building software.

sudo apt-get install build-essential

Install git to get the drivers repository

sudo apt install git

Clone the repository where is the drivers

git clone https://github.com/lwfinger/rtlwifi_new.git -b extended

Enter to the cloned folder

cd rtlwifi_new

Access to the branch extended

git checkout extended

Now, install make, make is typically used to build executable programs and libraries from source code

sudo make install

Add the modules: -sudo modprobe -r "Your Wireless driver code", for example:

sudo modprobe -r rtl8723de

-sudo modprobe "Your Wireless driver code", for example:

sudo modprobe rtl8723de