To download the render server, click the link above. Save the .msi file and then install it. The installation is quick and will start the render server automatically at the end. Once the installation has completed, you will notice a little CET icon in the notification area down by the clock in the bottom right corner of your screen:
Clicking the tray icon brings up the Controls for the Render Server:
Here, you need to make sure that the Server IP address is within the same subnet as your client(s). We also recommend that you select the Auto Start with Windows checkbox to make sure that your computer can help with render jobs when it is idle.
You can select how many CPU Cores the render server is allowed to use on your computer, and whether it should always run or wait a certain time after the last user activity.