In the event the 24-Button Board screen doesn't light up, you can try to troubleshoot this issue by ensuring that the Logitech LampArray Service is disabled.
- To disable the Logitech LampArray Service, type and select Services in the Windows search field to open the Services App.
- In the Services App list, find and right-click Logitech LampArray Service to open its Properties.
- Set the Startup type to disabled.
- Click Stop to set the service status to Stopped.
- Unplug and plug again the 24-Button Board.
- Restart Cloud9.