GNU/Linux Ubuntu 20.04 Installing Realtek Wi-fi Driver Setup Guide
You are Welcome! The Tutorial shows you Step-by-Step How to Install Realtek Wireless Card Driver on Ubuntu 20.04 Focal LTS GNU/Linux.
And this Realtek WiFi Driver Ubuntu 20.04 Setup cover most of the available Models.
Especially relevant, first you have to know your Realtek Adapter Chipset Id. And so the Guide include also instructions about How to Find it.
Finally, in case of Issue please be aware that not all the Linux Kernels are supported.

1. Launching Terminal
How to Quick-Start with Command Line on Ubuntu GNU/Linux:
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2. Looking Up Wifi Card Model
Then to Find Wireless Interface Vendor and ID
For the PCI/PCIe internal Adapters simply run the Command:lspci -v | grep Wireless
But for the USB Dongles try instead with:lsusb -v | grep Wireless
The grep Command refine the result following the matching Keyword.
And in the Output you’ll easily See the Card’s Manufacturer and Model:
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3. Installing Realtek Wifi Driver
So Now I’m truly Happy if My Guide could Help You to Install Realtek WiFi Driver on Ubuntu 20.04 Focal!
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