Chapter 9 Troubleshooting the Installation
126
68-4004214-01 Rev D
No Downstream Signal Lock
After a cable modem gateway powers on and performs an internal self-test, the cable
modem gateway starts to scan for the CMTS downstream channel. The cable modem
gateway starts its standard scanning algorithm.
Note:
For more information on this process, see
Scan for Downstream Channel
(on
page 8).
The following table illustrates the status of the front-panel LED status indicators
when the
no downstream signal lock
condition exists.
DPR/EPR2320
LED Label
Status
1
Power
ON
2
Receive Data BLINKING
3
Send Data
OFF
4
Cable
OFF
5
PC
ON or BLINKING when connected to CPE
OFF when not connected to CPE
6
PC Wireless
ON or BLINKING when wireless interface is enabled
OFF when wireless interface is disabled
DPR/EPR2325
LED
Label
Status
1
Power
ON
2
Receive Data BLINKING
3
Send Data
OFF
4
Cable
OFF
5
Ethernet
ON or BLINKING when connected to CPE
OFF when not connected to CPE
6
USB
ON or BLINKING when connected to CPE
OFF when not connected to CPE
7
Wireless
ON or BLINKING when wireless interface is enabled
OFF when wireless interface is disabled