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Chapter 4: Troubleshooting
4. Troubleshooting
4.1 Troubleshooting Tips
Symptoms, causes, and solutions of possible problems are described below.
Symptom:
The Power LED is off.
Cause:
The Industrial Ethernet Extender is not receiving power.
Solution:
Check the power adapter connections for the Industrial Ethernet Extender and the connected device.
Be sure all cables used are correct and comply with Ethernet specifications.
Symptom:
Link/Activity LED is OFF or intermittent.
Cause:
The port connection is not working.
Solution:
Check the crimp on the connectors and be sure the plug is inserted properly and locked into the port at both the
Industrial Ethernet Extender and the connecting device.
Be sure all cables used are correct and comply with Ethernet specifications.
Check for a defective adapter card, cable, or port by testing them in an alternate environment where all products are functioning.
Symptom:
File transfer is slow or performance degradation is a problem.
Cause:
Half- or full-duplex setting on the Industrial Ethernet Extender and the connected device are not the same.
Solution:
Configure the Industrial Ethernet Extender and the attached device to auto-negotiate.
Symptom:
A segment or device is not recognized as part of the network.
Cause:
One or more devices are not connected properly or cabling does not meet Ethernet guidelines.
Solution:
Verify that the cabling is correct.
Be sure all connectors are securely positioned in the required ports. Equipment may have been disconnected accidentally.
Symptom:
Collisions are occurring on the connected segment.
Cause:
Some collisions are normal when the connection is operating in half-duplex mode.
Solution:
Recheck the settings of the device attached to the Industrial Ethernet Extender port.
Be sure the Industrial Ethernet Extender and the attached device are using the same duplex setting.
Be sure the Industrial Ethernet Extender and the attached device are set to auto-negotiate.
Symptom:
Link/Activity LED is flashing continuously on all connected ports and the network is disabled.
Cause:
A network loop (redundant path) has been created.
Solution:
Break the loop by ensuring that there is only one path from any networked device to any other networked device.
