NETGEAR N450/CG3000Dv2 user manual Troubleshooting

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6. Troubleshooting		6
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.

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Contents N450 WiFi Cable Modem Router Model N450/CG3000Dv2 Trademarks SupportCompliance Contents Appendix a Supplemental Information Connecting to the Internet Unpack Your Modem Router Hardware FeaturesEthernet cable Power adapter Modem router Front Panel WPS Back Panel  To position your modem router LabelPosition Your Modem Router Cable Your Modem Router  To cable your modem router To use WPS to connect to the WiFi network Connect Computer to the Modem Router To log in to the modem router  To find and select the WiFi networkLog In to Your Modem Router View Basic Settings  To view or configure basic settingsNotify Your Internet Service Provider Cable ISP Contact Information Configuring Your Wireless Network Set Up Your Wireless Network  To view or configure the wireless settingsConfiguring Your Wireless Network Use WPS Wireless Setup Add a Client Using the WPS Button  To add a client to your modem router using the WPS buttonConfiguring Your Wireless Network Add a Client Using a PIN  To add a client to your modem router using a PINSet Up Wi-Fi Multimedia  To set up Wi-Fi MultimediaChange the Password  To change the password Filtering Content View Denial of Service Attack Logs  To view or set up notification of attacks by emailLimit Internet Site Access  To block access to sites containing certain words To allow a keyword that was previously blocked  To block access to certain domains  To unblock a domain Allow Unrestricted Access  To allow unrestricted accessEnable or Disable Modem Router Features  To enable or disable specific firewall features  To enable or disable specific web features  To enable or disable specific NAT ALG Status features Filtering Content Maintaining Your Network View the Modem Router Status  To view the modem router status To view the modem router’s initialization procedure View the Connection StatusBack Up and Restore Your Settings  To back up the settings  To restore the backup settingsView the Event Log  To view or clear the event log Run the Diagnostic Utilities  To run a ping test To clear the results from the display Traceroute Utility  To run a traceroute test To clear the results from the display Maintaining Your Network Advanced Settings Advanced Wireless Settings  To configure advanced wireless settingsConfigure the settings described in the following table MAC FilteringAdvanced Settings  To stop blocking a computer  To remove a computer from the list  To set up IP filteringIP Filtering Advanced Settings Port Blocking  To delete a device from the IP Filter List To add a custom service  To delete a custom service from the Active Filters table Port Forwarding Advanced Settings  To configure port triggering Port TriggeringAdvanced Settings  To remove a configured port trigger from the table  To return all trigger and target ranges to zero To set up a DMZ host DMZ HostSelect the Respond to Ping on WAN Port check box LAN IP Setup To configure LAN IP settings Click the Apply button Reserve an IP Address for Dhcp Use  To reserve an IP address for DhcpLAN Switch  To configure the switch ports To disable a LAN port Configure Universal Plug and Play  To configure UPnP To enable NTP Set Networking ProtocolsEnable Network Address Translation  To access a USB device from a Windows computer Access a USB Device on the Network To disable NAT  To access a USB device from a MAC computer Select Go Connect to Server Type smb//192.168.0.5 in the Server Address field To safely remove a USB device Click the Safely Remove USB Device button Troubleshooting Basic Functions Connect to the Modem Router’s Main MenuTroubleshoot a TCP/IP Network Using a Ping Utility Troubleshoot the ISP ConnectionTest the LAN Path to Your Modem Router PingTroubleshooting Supplemental Information Factory Default Settings Factory default settingsTechnical Specifications WPA/WPA2Supplemental Information