| Troubleshooting |
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3Com Knowledgebase
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A database of technical information to help you diagnose and solve installation, upgrade and configuration problems.
 
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Product FAQs
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Q:
How can I use the Business Managed Hubs?
A:
The Business Managed Hubs are designed to help detect and solve possible problems with your network. Problems that are not of a serious nature, like a disconnected or damaged cable, or an incorrect configuration can be easily diagnosed. More serious problems should be referred to your supplier.
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Q:
How do I begin troubleshooting a problem with my Hub?
A:
Start by trying to isolate the problem. A good way to do this is to see if the problem occurs on a particular port only. Do so by using a different port to see if the problem still exists. Also, use management to view how a port has been set up. Check to see if the port is partitioned because of a network loop, disabled by management, part of a resilient link pair, or performing security.
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Q:
What do I do if the Power LED is not lit?
A:
Check your power cord connection. If the connection is secure and there is still no power, you may have a faulty power cord that needs to be replaced. Take a power cord from a Hub that is working and replace the suspect cord. This way you can isolate whether the power cord or the Hub is the defective part.
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