Chapter : Troubleshooting | 39
Wireless Cable Gateway CG3000D-1CXNAS

Using LEDs to Troubleshoot

The following table provides help when using the LEDs for troubleshooting.
Connecting to the Gateway’s Main Menu
If you are unable to access the gateway’s main menu from a computer on your local network,
check the following:
• Check the Ethernet connection between the computer and the gateway as described in
the previous section.
• Make sure that your PC’s IP address is on the same subnet as the gateway. If you are
using the recommended addressing scheme, your PC’s address should be in the range
of 192.168.0.10 to 192.168.0.254. Refer to the link to the online document “Internet
Networking and TCP/IP Addressing” in Appendix B for help configuring your computer.
Note: If your PC’s IP address is shown as 169.254.x.x:
Recent versions of Windows and MacOS will generate and assign
an IP address if the computer cannot reach a DHCP server. These
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 On • Clear the gateway’s configuration to factory defaults. This will set
the gateway’s IP address to 192.168.0.1. 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 PC.
• Make sure that power is turned on to the connected hub or PC.
• Be sure you are using the correct cable.
Internet LED is off and the
gateway is connected to the cable
television cable.
• 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 you may have on your cable line.
It may be necessary to run a “home run” back to the point where
the cable enters your home.