Intel Original Compute Stick – Keep WiFi from Breaking – Block Kernel Updates and Chestersmill-Settings Updates
If you have the original Intel Compute Stick (STCK1A8LFC [1GB of RAM] or STCK1A32WFC [2GB of RAM] models from 2015), you'll need to prevent a few software packages from updating so that these updates won't break your WiFi! I've never been able to get the WiFi to work with these Intel Compute Sticks running a kernel newer than version 3.16 on any version of Ubuntu. I've also never been able to get the WiFi to work on anything but Ubuntu 14.04, so you might be stuck having to run this older version of Ubuntu. Also, updates to the chestersmill-settings package can break your WiFi. To prevent both scenarios from breaking your WiFi, simply prevent the below packages from being updated.
Preventing packages from being updated can be accomplished using hold statuses in the apt system as explained on AskUbuntu:
https://askubuntu.com/questions/18654/how-to-prevent-updating-of-a-specific-package
Basically, you'll need to run the below commands to prevent WiFi from breaking due to buggy kernel and chestersmill-settings package updates:
sudo apt-mark hold chestersmill-settings
sudo apt-mark hold linux-image-$(uname -r)
sudo apt-mark hold linux-image-generic
sudo apt-mark hold linux-generic
You can now safely update software packages without worrying about your WiFi being broken by kernel and chestersmill-settings package updates!
Get Latest Software from Ubuntu Advantage for Ubuntu 14.04
Ubuntu 14.04 is also still supported via the Extended Security Maintenance (ESM) Ubuntu Advantage program (https://ubuntu.com/advantage).
To get updated software and packages until April of 2022, you'll need to get an Ubuntu Advantage key. Get your key using your UbuntuOne account on this page: https://ubuntu.com/advantage
Now, install the Ubuntu advantage client by using the commands below:
sudo add-apt-repository ppa:ua-client/stable
sudo apt-get update
sudo apt-get install ubuntu-advantage-tools
Set your key using the command below (using your key rather than YOUR_KEY_HERE):
sudo ua attach YOUR_KEY_HERE
Now update and install the upgraded packages available via Ubuntu Advantage:
sudo apt-get update && sudo apt-get upgrade