Troubleshoot The Isp Connection; Troubleshoot A Tcp/Ip Network Using A Ping Utility - NETGEAR N450 User Manual

• Make sure that your computer's IP address is on the same subnet as the modem router.
If you are using the recommended addressing scheme, your computer's address is in the
range of 192.168.0.10 to 192.168.0.254.
Note: If your computer's IP address is shown as 169.254.x.x:
Recent versions of Windows and Mac OS generate and assign an IP
address if the computer cannot reach a DHCP server. These
autogenerated addresses are in the range of 169.254.x.x. If your IP
address is in this range, check the connection from the computer to
the modem router and reboot your computer.
• If your modem router's IP address has been changed and you do not know the current IP
address, clear the modem router's configuration to factory defaults. This sets the modem
router's IP address to 192.168.0.1. For more information, see
page 86.
• Make sure that your browser has Java, JavaScript, or ActiveX enabled. If you are using
Internet Explorer, click the Refresh button to make sure that the Java applet is loaded.
• Try quitting the browser and launching it again.
• Make sure that you are using the correct login information. The modem router user name
is admin, and the default password is password, both in lower case letters. (Caps Lock
should be off when you enter these.)
If the modem router does not save changes you have made, try the following:
• When entering configuration settings, be sure to click the Apply button before moving to
another screen, or your changes are lost.
• Click the Refresh or Reload button in the web browser. The changes might have
occurred, but the web browser might be caching the old configuration.

Troubleshoot the ISP Connection

If your modem router is unable to access the Internet and your Internet LED is lit, you might
need to register the cable MAC address or device MAC address of your modem router with
your cable service provider.
Additionally, your computer might not have the modem router configured as its TCP/IP
modem router. If your computer obtains its information from the modem router by DHCP,
reboot the computer and verify the modem router address. For more information, see
Reserve an IP Address for DHCP Use

Troubleshoot a TCP/IP Network Using a Ping Utility

Most TCP/IP terminal devices and routers contain a ping utility that sends an echo request
packet to the designated device. The device then responds with an echo reply. You can
N450 WiFi Cable Modem Router Model N450/CG3000Dv2
on page 69.
Troubleshooting
Factory Default Settings
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