Whenever I reinstall Ubuntu on my laptop, I spend 15 minutes digging around the internet trying to remember how to install the wireless driver. I’ve written this down so that I don’t have to look so hard anymore.
1. Check which device you have
$ lspci -nn | grep 0280
In my case I had
Broadcom Inc. and subsidiaries BCM4360 802.11ac Wireless Network Adapter [14e4:43a0] (rev 03).
I was then able to search online for the specific wireless device, which I found returned better results than searching for the type of laptop.
2. Install the driver for your device
$ sudo apt install bcmwl-kernel-source
In my case, running this command was enough to get my WiFi working. I just had to restart my computer after the installation has completed.
This guide probably isn’t useful unless you are exactly me trying to do this about twice a year, but that’s okay. Thanks for stopping by.