T
ROUBLESHOOTING
10
T
ROUBLESHOOTING
Diagnosing Switch Indicators
1. Symptom
Power LED does not light after power on.
Probable Causes
• AC power cord may be defective.
Possible Solutions
• Check for loose connections.
• Check the power outlet by using it for another device.
• Replace the AC power cord.
2. Symptom
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 10/100 Mbps
connections, Category 5 or 5e cable for 1000 Mbps connections, and
that the length of any cable does not exceed 100 meters (328 feet).
• Check the network card and cable connections for defects.
• Replace the defective card or cable if necessary.
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