Appendix; Troubleshooting; Problem Solving; Problem Solving - Cisco MWR 1941-DC - 1941 Mobile Wireless Router Hardware Installation Manual

Troubleshooting

Your Cisco MWR 1941-DC router goes through extensive testing before leaving the factory. If you
encounter problems, use the information in this appendix to help isolate problems or to eliminate the
router as the source of the problem.
This appendix contains the following sections:
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If you cannot locate the source of the problem, contact a customer service representative for information
on how to proceed. For technical support information, see the Cisco Information Packet publication that
shipped with your router. Before you call, have the following information ready:
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Problem Solving

The key to problem solving is to isolate the problem to a specific subsystem by comparing what the
router is doing to what it should be doing.
The LEDs on the front panel of the router enable you to determine router performance and operation.
For a description of these LEDs, see
When problem solving, consider the following router subsystems:
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78-15827-06B0
Problem Solving, page A-1
Reading the LEDs, page A-4
Chassis type and serial number
Maintenance agreement or warranty information
Type of software and version number
Date you received the new chassis
Brief description of the problem
Brief explanation of the steps you have taken to isolate the problem
Power and cooling systems—External power source, power cable, router power supply and circuit
breaker, and router blower and fan. Also consider inadequate ventilation or air circulation.
Modules—LEDs on the modules help identify a failure.
Cables—External cables that connect the router to the network.
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
A P P E N D I X
Reading the LEDs, page A-4.
A
A-1