Chapter 3 Troubleshooting
3-2
Cisco LRE CPE Hardware Installation Guide
78-11469-04
READY LED not on
Telephone cable is loose or is not
connected properly.
Reconnect the phone cable into
the phone wall jack and the CPE.
Telephone cable is defective.
Replace the telephone cable.
Cable trunking is defective.
Repair the cable trunking, or
select an alternative pair.
1.
CPE is not communicating with
LRE switch.
2.
CPE might be attempting to exceed
the rate or reach selected by the
LRE switch.
Verify switch and upstream
network status.
ETH LED or ETHn
LED not on
Ethernet cable is loose or is not
connected properly.
Reconnect the Ethernet cable to
the CPE and your PC or your
laptop.
CPE is not communicating with the
Ethernet card in the 10/100 device.
Reboot the 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.
•
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.
ACTIVITY LED or
ETHn LED not
blinking
Data is not being transferred between
the CPE and the 10/100 device.
Verify laptop or PC network
configuration.
Table 3-1
Common Problems and Their Solutions (continued)
Symptom
Possible Cause
Resolution
