Troubleshooting
Diagnosing Switch Indicators
Symptom
Power LED does not light after power on.
Probable Causes
DC power adapter may be defective.
Possible Solutions
•Check for loose connections.
•Check the power outlet by using it for another device.
•Replace the DC power adapter.
Symptom
Port (link) LED does not light after connection is made.
Probable Causes
Switch port, network card, or cable may be defective.
Possible Solutions
•Check that the Switch and attached device are both powered on.
•Be sure the network cable is connected to both devices.
•Verify that Category 5 or better cable is used for 10/100Mbps connections; Category 5, 5e, or 6 cable for 1000Mbps connections; and that the length of any cable does not exceed 328 feet (100m).
•Check the network card and cable connections for defects.
•Replace the defective card or cable if necessary.
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