I use an Edimax AC600 series USB wireless device for my raspberry pi. Here is the easy way to install the driver for it.
Make sure your Pi is up-to-date and then restart the Pi:
sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade sudo apt-get shutdown -r now
Now download a script to automatically work out the correct driver version:
Extract the downloaded file:
tar -xzf install-wifi.tar.gz
Run the script to make sure there is a suitable version of the driver:
This will then tell you (a) if there is a driver and (b) its name. In my example the driver was ‘8812au’ so then I download and install the driver using:
Finally reboot the Pi and hey presto, you’re done!
sudo shutdown -r now