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21
Gigabit Unmanaged Switch
Troubleshooting
Appendix A Troubleshooting
Q1.
The 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:
1. Make sure that the power cable is connected properly, and the power
contact is normal.
2. Make sure the voltage of the power supply meets the requirement of the
input voltage of the switch.
Q2.
The Link/Act LED is not lit when a device is connected to the
corresponding port
Please check as follows:
1. Make sure that the cable connectors are firmly plugged into the switch and
the device.
2. Make sure the connected device is turned on and working well.
3. The cable must be less than 100 meters long (328 feet).
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For more troubleshooting help, go to: http://www.tp-link.com/en/support/faq
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To download the latest Firmware, Driver, Utility and User Guide, go to:
http://www.tp-link.com/en/support/download
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