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Appendix B
Troubleshooting
Diagnosing Hub Indicators
The hub can be easily monitored through panel LED indicators to assist the network manager in identifying problems. This section describes common problems you may encounter and possible solutions.
Table B-1
Diagnosing Hub Indicators
Symptom | Cause | Solution |
Power indicator does not light | Defective power outlet, power | Check the power outlet by plugging in another |
up (green) after power on | cord, or internal power supply | device that is functioning properly. Check the |
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| power cord with another device. If these |
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| measures fail to resolve the problem, contact |
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| Compaq Technical Support at |
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|
Link indicator does not light up (green) after making a connection
Network interface (e.g., a network adapter card on the attached device), network cable, or hub port is defective
Verify that the hub and attached device are powered on. Be sure the cable is plugged into both the hub and attached device. Check the adapter on the attached device and cable connections for possible defects. See if your cable is functioning properly by using it for another port and attached device that displays valid indications when connected to the network. Replace the defective adapter or cable if necessary. Also verify that you have not exceeded specified limits for any attached media.
Compaq HB1004