Table of Contents
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Table 3-1
Common Problems and Their Solutions (continued)
Symptom
READY LED not on
ETH LED or ETHn
LED not on
ACTIVITY LED or
ETHn LED not
blinking
Cisco LRE CPE Hardware Installation Guide
3-2
Possible Cause
Telephone cable is loose or is not
connected properly.
Telephone cable is defective.
Cable trunking is defective.
1.
CPE is not communicating with
LRE switch.
2.
CPE might be attempting to exceed
the rate or reach selected by the
LRE switch.
Ethernet cable is loose or is not
connected properly.
CPE is not communicating with the
Ethernet card in the 10/100 device.
Incorrect or defective Ethernet cable.
•
A crossover cable was used instead
of the included straight-through
cable.
The Ethernet cable is wired
•
incorrectly or is defective.
Data is not being transferred between
the CPE and the 10/100 device.
Chapter 3
Troubleshooting
Resolution
Reconnect the phone cable into
the phone wall jack and the CPE.
Replace the telephone cable.
Repair the cable trunking, or
select an alternative pair.
Verify switch and upstream
network status.
Reconnect the Ethernet cable to
the CPE and your PC or your
laptop.
Reboot the device.
•
For the correct pinouts and
the proper use of
straight-through cables, see
the
"Ethernet
Straight-Through Cable
Pinouts" section on
page
B-5.
Replace with a tested good
•
cable.
Verify laptop or PC network
configuration.
78-11469-04
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Troubleshooting
