For the correct operation with the Sprvsr+ Web Plug-in Web manufacturer's software, you must first enable WebSocket in IIS (Internet Information Services).

To enable the WebSocket component, do the following:

1. Open Server Manager.
2. Select Add roles and features.
3. Go to Features → Web Server (IIS) → Web Server → Application Development.
4. Set the WebSocket Protocol checkbox.
   
   
5. Click the OK button to save the changes.

The WebSocket component is enabled.