Chapter 5 Troubleshooting the System Hardware

Undetermined Problems

Table 5-1

Ethernet Troubleshooting Chart (continued)

 

 

Ethernet Controller

 

Problem

 

Actions

 

 

Data is incorrect or

Check the following:

sporadic.

 

Make sure that you are using Category 5 or higher cabling when operating

 

 

 

 

the device at 100 Mbps or 1000 Mbps.

Make sure that the cables do not run close to noise-inducing sources such as fluorescent lights.

The Ethernet

Check the following:

controller stopped

Try a different connector on the switch.

working without

Reseat or replace the adapter.

apparent cause.

Undetermined Problems

Use the information in this section if the diagnostic tests did not identify the failure, the devices list is incorrect, or the system is inoperative.

Note Damaged data in CMOS can cause undetermined problems.

Note Damaged data in the BIOS code can cause undetermined problems.

Check the front panel Power LED. If the LED indicates the power supply is working correctly, follow these steps:

Step 1 Power down the device.

Step 2 Make sure that the device is cabled correctly.

Step 3 Remove or disconnect the following devices (one at a time) until you find the failure (power up the device and reconfigure it each time):

Any non-Cisco devices

Surge suppressor device (on the device)

 

Cisco Wide Area Virtualization Engine 274 and 474 Hardware Installation Guide

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Cisco Systems 474, 274 manual Undetermined Problems