NETGEAR N450/CG3000Dv2 user manual Troubleshooting

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N450 WiFi Cable Modem Router Model N450/CG3000Dv2

If the path is functioning correctly, replies as in the previous section are displayed. If you do not receive replies, do the following:

•Check that your computer has the IP address of your modem router listed as the default modem router. If the IP configuration of your computer is assigned by DHCP, this information is not visible in your computer’s Network Control Panel. Verify that the IP address of the modem router is listed as the default modem router.

•Check to see that the network address of your computer (the portion of the IP address specified by the netmask) is different from the network address of the remote device.

•Check that your Internet LED is lit.

Troubleshooting

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Contents N450 WiFi Cable Modem Router Model N450/CG3000Dv2 Support ComplianceTrademarks Contents Appendix a Supplemental Information Connecting to the Internet Hardware Features Ethernet cable Power adapter Modem routerUnpack Your Modem Router Front Panel WPS Back Panel Label Position Your Modem Router To position 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 find and select the WiFi network Log In to Your Modem Router To log in to the 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 set up IP filtering IP Filtering To remove a computer from the list 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 HostLAN IP Setup  To configure LAN IP settingsSelect the Respond to Ping on WAN Port check box 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 Access a USB Device on the Network  To disable NAT To access a USB device from a Windows computer  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