1. First install the Jetpack plugin. Go to Plugins > Add New - Search for Jetpack and install it.
2. Next go to Jetpack > Settings - look for 'Related Posts' and click the 'Activate' link when you hover over it.
3. (This is important)
If you're using Jetpack you should deactivate any features you are not using. Having too many active can slow down your WordPress instance. One you need to deactivate is the Photon module.
Ensure Photon is deactivated.
It will conflict with the Layerslider plugin if it is activated.
4. The final step - go to Settings > Reading
Tick the first two checkboxes as seen in the screenshot below. You will need to have a number of blog posts on your site within the same category for these related posts to begin appearing.
More information on this module is available here:
https://jetpack.com/support/related-posts/
Customization documentation concerning this module is available here:
https://jetpack.com/support/related-posts/customize-related-posts/
