How to install a WiFi driver on Ubuntu

Here is your guide to download and install a WiFi driver for your Ubuntu PC or laptop.

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My HP 14 laptop started giving WiFi issues, so I recently bought a USB WiFi adapter — TP-Link Archer T2U Nano USB WiFi adapter. TP-Link has provided an easy step-by-step guide to download and install a driver for each of its model here. But this works only for Windows and Mac OS.