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Troubleshooting
Your Cisco MWR 1941-DC-A router undergoes extensive testing before it leaves 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:
•
•
•
•
•
•
Ensure you provide the customer service representative with any upgrade or maintenance information
Note
that was performed on the Cisco MWR 1941-DC-A router after your initial installation (see the
"Creating a Site Log" section on page 2-9
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, check the following router subsystems:
•
•
OL-7872-04
Problem
Solving, this page
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 fans. Also check for inadequate ventilation or air circulation.
Modules—Checking the LEDs on the modules can help you to identify a failure.
Cisco MWR 1941-DC-A Mobile Wireless Edge Router Hardware Installation Guide
A P P E N D I X
and
Appendix C, "Site Log"
"Reading the LEDs" section on page
A
for Site Log information.
A-4).
A-1
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Table of Contents
Troubleshooting
