Install the Chaos License Server to manage your activation.

To run V-Ray 3.6 smoothly, your 2021-era setup (or newer) should meet these minimums:

In 2021 and beyond, many users stuck with SketchUp 2018 because it was one of the last versions to offer a highly stable perpetual license environment before the full shift to subscription models. V-Ray 3.6 was the perfect companion for this version, offering: