Gigabit Unmanaged Switch
Appendix A Troubleshooting
QQQQThe Power LED is not lit
The Power LED should be lit up when the power system works normally. If the Power LED worked abnormally, please check as follows:
111 Make sure that the power cable is connected properly, and the power contact is normal.
222 Make sure the voltage of the power supply meets the requirement of the input voltage of the Switch.
QQQQThe Link/Act LED is not lit when a device is connected to the corresponding port
Please check as follows:
111 Make sure that the cable connectors are firmly plugged into the Switch and the device.
222 Make sure the connected device is turned on and working well. 333 The cable must be less than 100 meters long(328 feet\.
Troubleshooting 
18