Troubleshooting
Troubleshooting Solutions
Problems | Possible Cause | Solution |
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The device may not be | Remove and reinstall the device. If that does not | |
seconds | correctly installed. | help, consult your technical support representative. |
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|
No connection is estab- | Wrong network address | Configure the network address in the workstation |
lished and the port LED | in the workstation |
|
is on | No network address set | Configure the network address in the workstation |
| Configure the workstation with IP protocol | |
| Wrong or missing proto- | Replace the cable |
| Replace the module | |
| col | Replace the module |
| Faulty ethernet cable | Erase the connection and reconfigure the port |
| Faulty port |
|
| Faulty module |
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| Incorrect initial configura- |
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| tion |
|
Device is in a reboot | Software fault | Download and install a working or previous software |
loop |
| version from the console |
No connection and the | Incorrect ethernet cable, | Check pinout and replace if necessary |
port LED is off | e.g., crossed rather than |
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| straight cable, or vice |
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| versa, split pair (incorrect |
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| twisting of pairs) |
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| Fiber optical cable con- | Change if necessary. Check Rx and Tx on fiber optic |
| cable | |
| nection is reversed | |
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| |
| Bad cable | Replace with a tested cable |
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| |
| Wrong cable type | Verify that all 10 Mbps connections use a Cat 5 cable |
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| |
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| Check the port LED or zoom screen in the NMS |
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| application, and change setting if necessary |
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