NETGEAR N450/CG3000Dv2

6. Troubleshooting

This chapter gives information about troubleshooting your modem router. For the common

problems listed, see the section indicated:

•Have I connected the modem router correctly?

See Basic Functions on page 81.

•I cannot access the modem router configuration with my browser.

See Connect to the Modem Router’s Main Menu on page 81.

•I have configured the modem router but I cannot access the Internet.

See Troubleshoot the ISP Connection on page 82.

•My modem router is not responding.

•See Troubleshoot a TCP/IP Network Using a Ping Utility on page 82.

If you cannot remember the modem router’s configuration password or you want to clear the

configuration and start over again, see Factory Default Settings on page 86.

Tip: NETGEAR provides helpful articles, documentation, and the latest

software updates at http://support.netgear.com.

Contents

Main Page Contents Chapter 1 Connecting to the Internet Chapter 2 Configuring Your Wireless Network Chapter 3 Filtering Content Chapter 4 Maintaining Your Network Chapter 6 Troubleshooting Appendix A Supplemental Information Page Unpack Your Modem Router Hardware Features Front Panel The router front panel has the following status LEDs and buttons: Connecting to the Internet N450 WiFi Cable Modem Router Model N450/CG3000Dv2 Table 1. LEDs and buttons Back Panel Label Position Your Modem Router Cable Your Modem Router Connect Computer to the Modem Router Wired Connection WiFi Connection Log In to Your Modem Router View Basic Settings Notify Your Internet Service Provider Page Page Set Up Your Wireless Network Configure Wireless Settings Manually Page Use WPS Wireless Setup Add a Client Using the WPS Button Page Add a Client Using a PIN Set Up Wi-Fi Multimedia Change the Password Page Page View Denial of Service Attack Logs Limit Internet Site Access Page Page Page Allow Unrestricted Access Enable or Disable Modem Router Features Page Page Page Page Page View the Modem Router Status View the Connection Status Back Up and Restore Your Settings Page View the Event Log Page Run the Diagnostic Utilities Ping Utility Page Traceroute Utility Page Page Page Advanced Wireless Settings MAC Filtering Page Page IP Filtering Page Port Blocking Page Page Port Forwarding Page Port Triggering Page Page DMZ Host LAN IP Setup Page Reserve an IP Address for DHCP Use LAN Switch Page Configure Universal Plug and Play Set Networking Protocols Enable Network Address Translation Access a USB Device on the Network Page Page Page Page Page Basic Functions Connect to the Modem Routers Main Menu Troubleshoot the ISP Connection Troubleshoot a TCP/IP Network Using a Ping Utility Test the LAN Path to Your Modem Router Test the Path from Your Computer to a Remote Device Page Page Supplemental Information N450 WiFi Cable Modem Router Model N450/CG3000Dv2 Factory Default Settings Table 3. Factory default settings Supplemental Information N450 WiFi Cable Modem Router Model N450/CG3000Dv2 Technical Specifications The following table describes the technical specifications for the modem router. Table 4. Technical specifications Table 3. Factory default settings (continued)