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Appendix A: Troubleshooting

Diagnosing Hub Indicators

The SwitcHub-2s can be easily monitored through its comprehensive panel
indicators. These indicators assist the network manager in identifying
problems the hub may encounter. This section describes common problems
you may encounter and possible solutions.
Symptom: Link indicator does not light up (green LED) after making a connection.
Cause: Workstation’s network adapter, cable or hub port is defective.
Solution: The most common cause for a bad connection to a workstation or
server is a defective network adapter or cable connection. Check the
workstation’s network adapter and cable connections for possible
defects. Replace the defective adapter or cable.
Symptom: Power indicator does not light u p (green LED) after power on.
Cause: Defective power supply or CPU
Solution: Have your unit’s power supply or CPU replaced. Ask for dealer
assistance.
Use the diagnostic procedures described in Chapters 2 and 3 to verify that all
other system components are functioning properly. If any component fails the
diagnostic test, contact your Accton distributor for assistance.