Troubleshooting
Troubleshooting | Table 2 provides suggestions for troubleshooting your hub. | |||
suggestions |
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| LED | Action | Cause | Solution |
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| Normal data |
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| Col | Blinking | collisions on the | No action is necessary. |
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| network. |
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| Make sure connected |
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| Data collisions | devices are not |
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| operating in full- | |
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| are occurring | |
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| duplex mode; they | |
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| because of a | |
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| must operate in half- | |
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| high volume of | |
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| duplex mode. | |
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| traffic on the | |
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| Blinking | Segment the network | |
| Col | network. | ||
| excessively | with an Ethernet | ||
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| switch. |
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| Cables used to | Verify that the cable is |
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| connect to the | of the correct type. See |
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| network are | “Communication |
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| defective or of | cables” on page 4 for |
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| the wrong type. | more information. |
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| Verify that the hub and |
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| the connected device |
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| are powered. |
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| Verify that the cable is |
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| Off |
| of the correct type. See |
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| Successful link | “Communication | |
| Link/ | (even with | is not being | cables” on page 4 for |
| Traffic | a cable | detected by the | more information. |
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| attached) | port. | Inspect cables for |
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| damage, cable pairs to |
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| see if they are wired |
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| correctly, and |
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| connectors to see if |
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| they are loose. |
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| Table 2: Suggestions for Troubleshooting | ||
Continued on next page
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