Troubleshooting
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NETGEAR DOCSIS 3.0 N450 Wi-Fi Data Gateway
Basic Functions
After you have turned on power to the gateway, do the following:
1. Check to see that the Power LED is lit.
2. Check that the numbered Ethernet LEDs light momentarily.
3. After a few seconds, check that the LEDs are lit for any local ports that are connected.
The following table provides help when you are using the LEDs for troubleshooting.
Table 1. LED behavior
Connect 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.
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 12V-DC 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 sets the
gateway’s IP address to 192.168.0.1. See Factory Default Settings on
page 54.
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 that 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 service provider provisioned your cable
Internet service. Your provider should verify that the signal quality
is good enough for cable modem service.
• Remove any excessive splitters you might have on your cable line.
It might be necessary to run a “home run” back to the point where
the cable enters your home.