First, ensure that power is reaching the device by checking the electrical connections. If power is confirmed, inspect the device for any visible damage or debris that might be obstructing its functionality. Next, review the device’s manual to understand its indicator lights and what they signify. Check for any error codes or abnormal behavior indicated by these lights. If there are no visible issues and the device appears to be receiving power, consider resetting it to factory defaults as a troubleshooting step. If the problem persists after these steps, it may be necessary to contact technical support for further assistance or consider replacing the device.