Troubleshooting
35
CG3000DCR Advanced Cable Modem Gateway
Basic Functions
After you have turned on power to the gateway, you should do the following:
1.
Check to see that the Power LED is lit.
2.
Check that the numbered Ethernet LEDs come on momentarily.
3.
After a few seconds, check that the local port link LEDs are lit for any local ports that are
connected.
If any of these conditions does not occur, refer to the appropriate following section.
Use LEDs to Troubleshoot
The following table provides help when using the LEDs for troubleshooting.
Table 4. Using LEDs to troubleshoot
LED Behavior
Action
All LEDS are off when the gateway
is plugged in.
Make sure that the power cord is properly connected to your gateway
and that the power supply adapter is properly connected to a
functioning power outlet.
Check that you are using the 12VDC power adapter supplied by
NETGEAR for this product.
If the error persists, you have a hardware problem and should contact
technical support.
All LEDs stay lit
•
Clear the gateway’s configuration to factory defaults, which returns
gateway’s IP address to 10.10.1. See
Factory Default Settings
in
Appendix A.
•
If the error persists, you might have a hardware problem and
should contact technical support.
LAN LED is off for a port with an
Ethernet connection.
•
Make sure that the Ethernet cable connections are secure at the
gateway and at the hub or computer.
•
Make sure that power is turned on to the connected hub or
computer.
•
Be sure you are using the correct cable.
Internet LED is off and the
gateway is connected with coaxial
cable to the cable television jack.
•
Make sure that the coaxial cable connections are secure at the
gateway and at the wall jack.
•
Make sure that your cable Internet service has been provisioned by
your cable service provider. Your provider should verify that the
signal quality is good enough for cable modem service.
•
Remove any excessive splitters that are on the cable line. You
might need to run a “home run” back to the point where the cable
enters the home.
