XS712T Smart Switch
Troubleshooting Chart
The following table lists symptoms, causes, and solutions of possible problems.
Table 4. Troubleshooting chart
Symptom | Cause | Solution |
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Power LED is off. | No power is received. | Check the power cord connections and the connected |
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| device. Ensure that all cables used are correct and |
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| comply with Ethernet specifications. |
Link LED is off or | Port connection is not | Check the crimp on the connectors and make sure that |
blinking. | working. | the plug is properly inserted and locked into the port at |
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| both the switch and the connecting device. Ensure that |
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| all cables used are correct and comply with Ethernet |
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| specifications. Check for a defective computer adapter |
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| card, cable, or port by testing them in an alternate |
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| environment where all products are functioning. |
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File transfer is slow, or | Make sure that the attached device is set to | |
performance degradation | setting on the switch and | autonegotiate. |
is a problem. | the connected device are |
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| not the same. |
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A segment or device is | One or more devices are | Verify that the cabling is correct. Ensure that all |
not recognized as part of | not properly connected, | connectors are securely positioned in the required |
the network. | or cabling does not meet | ports. Equipment might have been accidentally |
| Ethernet guidelines. | disconnected. |
ACT LED is blinking | A network loop | Break the loop by ensuring that there is only one path |
continuously on all | (redundant path) has | from any networked device to any other networked |
connected ports, and the | been created. | device. After you connect to the switch management |
network is disabled. |
| interface, you can configure the Spanning Tree |
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| Protocol (STP) to prevent network loops. |
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Additional Troubleshooting Suggestions
If the suggestions in the troubleshooting chart do not resolve the problem, see the troubleshooting suggestions in this section.
Network Adapter Cards
Ensure that the network adapter cards installed in the computers are in working condition and the software driver has been installed.
Configuration
If problems occur after you alter the network configuration, restore the original connections and determine the problem by implementing the new changes, one step at a time. Ensure
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