This page explains how to extend your V-Ray Personal Learning Edition (PLE) license for Maya.
Overview
The V-Ray Personal Learning Edition (PLE) license for Maya is a free license with a duration of three months. You can renew it seven days before its expiration from my.chaos.com. Note that you can extend the license as many times as you need.
If you already have an active license go to my.chaos.com→ Products→ Active Products to download the latest build.
Steps
To renew your license, is to sign in to www.chaos.com, press PRODUCTS and choose V-Ray for Maya from the drop-down menu.
Scroll down to the V-Ray Personal Learning Edition for Maya section and press LEARN MORE.
A new window will open. Press GET STARTED.
In the newly opened window, select how you will use the product and press START NOW.
Once the site processes the request, you will see the message shown below and another 90 days will be added to your license duration.
If your license has expired, you can download it again, following the steps from How to Download and Install V-Ray Personal Learning Edition for Maya.