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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.
Troubleshooting
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