NETGEAR DGND3300 user manual Cannot Access the Internet, Checking the Configuration

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RangeMax Dual Band Wireless-N Modem Router DGND3300 User Manual

If the modem router does not save changes you have made in the modem router menu, check 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 may have occurred, but the Web browser may be caching the old configuration.

Cannot Access the Internet

Note: If you are installing the modem router and have not yet configured the Internet connection, see Chapter 1, “Configuring Your Internet Connection” or the Setup

Manual.

If your Internet connection was working previously, it is possible that this is due to a problem at your ISP. If you can access your router but you are unable to access the Internet, you can check its configuration, and you can determine whether the router can obtain an IP address from your Internet Service Provider (ISP).

Checking the Configuration

To check the router configuration to make sure that it is correct:

1.Start your browser, and select an external site such as http://www.netgear.com.

2.Access the main menu of the router at http://www.routerlogin.net.

Select Basic Settings to view the Basic Settings screen.

Select ADSL to view the settings for Multiplexing method, VPI, and VCI settings.

You can select Setup Wizard and allow the modem router to automatically detect your Internet connection.

Checking the WAN IP Address

Unless your ISP provides a fixed IP address, your router must request an IP address from the ISP. You can determine whether the request was successful using the Router Status screen.

To check the WAN IP address:

1.Start your browser, and select an external site such as http://www.netgear.com.

Troubleshooting

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v1.0, March 2009

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Contents NETGEAR, Inc Certificate of the Manufacturer/Importer Product Registration, Support, and DocumentationTrademarks Statement of ConditionsEurope EU Declaration of Conformity FCC Guidelines for Human Exposure FCC Information to UserFCC Radio Frequency Interference Warnings & Instructions FCC Declaration Of ConformityProduct and Publication Details Contents Chapter Protecting Your Network Appendix B Related Documents Index V1.0, March Conventions, Formats, and Scope About This ManualHow to Print This Manual How to Use This ManualPublication Revision History Revision HistoryVersion Date Description V1.0 March Original publication Xiv Using the Setup Manual Chapter Configuring Your Internet ConnectionDocument in Preparing Your Network in Appendix B Logging In to Your Modem RouterV1.0, March Using the Setup Wizard Viewing or Manually Configuring Your ISP Settings ISP does not require login Settings Description Basic Settings screen fieldsGet Automatically from ISP. Your ISP uses Dhcp to Xxxxxxxxxxxx Configuring Adsl SettingsV1.0, March V1.0, March Planning Your Wireless Network Chapter Safeguarding Your NetworkSee Manually Configuring Your Wireless Settings on Wireless Placement and Range GuidelinesWireless data Security options Range up to 300 foot radius Wireless Security OptionsManually Configuring Your Wireless Settings Wireless Settings WPA-802.1x Configuring WEP Wireless SecurityNetwork Key 8-63 characters Security Options section, select the WEP radio button Configuring WPA, WPA2, or Mixed WPA2 + WPA Wireless Security V1.0, March Using Push N Connect WPS to Configure Your Wireless Network Using a WPS Button to Add a WPS Client Using PIN Entry to Add a WPS Client Configuring Advanced WPS Settings Adding More WPS Clients Adding Both WPS and Non-WPS Clients Enable Wireless Router Radio Restricting Access to Your Modem RouterV1.0, March V1.0, March Chapter Protecting Your Network Protecting Access to Your Modem RouterChanging the Built-In Password Restricting Access by MAC AddressSelect the Turn Access Control On checkbox Blocking Access to Internet Sites V1.0, March Firewall Rules Field Outbound Rules Inbound Rules Adding or Editing Firewall Service RulesBlocking Access to Internet Services V1.0, March Scheduling Blocking Log Entry Descriptions Viewing Logs of Web Access or Attempted Web AccessField Description Configuring E-mail Alert and Web Access Log Notifications Setting the Time V1.0, March Upgrading the Firmware Chapter Using Network Monitoring ToolsManually Checking for Firmware Upgrades V1.0, March Viewing Modem Router Status Information Dhcp Modem Router Status FieldsConnection Status Statistics Connection Status SettingsModem Router Statistics Viewing a List of Attached Devices Backing Up and Restoring the Configuration Managing the Configuration FileErasing the Configuration Running Diagnostic Utilities and Rebooting the Modem Router Select the Turn Remote Management On check box Enabling Remote Management AccessV1.0, March V1.0, March Using the LAN Setup Options Chapter Customizing Your Network SettingsSettings LAN SetupLAN TCP/IP Address Reservation Using the Modem Router as a Dhcp ServerUsing a Dynamic DNS Service Select the Use a Dynamic DNS Service check box WAN Setup Settings Configuring the WAN Setup OptionsSetting Description WAN Port Setting Up a Default DMZ ServerConfiguring QoS for Internet Access Setting up Quality of Service QoSQoS for Applications and Online Gaming QoS for a Router LAN Port QoS for a MAC Address Editing or Deleting an Existing QoS Policy Configuring Static Routes V1.0, March Wireless Repeating Also Called WDS Wireless Repeating Function Setting Up the Base Station Fill in the Base Station MAC Address field Setting Up a Repeater UnitV1.0, March Chapter Fine-Tuning Your Network Assessing Your Speed Requirements Theoretical Transfer Time for 1 Gigabyte Optimizing Your Network BandwidthNetwork Connection Theoretical Raw Transfer Time RangeMax Dual Band Wireless-N Modem Router Identify critical wireless links Optimizing Wireless PerformanceChanging the MTU Size Choose your settingsCommon MTU Sizes Universal Plug and PlayApplication V1.0, March Recommendation Instructions Chapter TroubleshootingQuick Tips Quick TipsTroubleshooting with the LEDs Situation Recommended Action Troubleshooting with the LEDsCannot Access the Router Menu Checking the Configuration Cannot Access the InternetChecking the WAN IP Address V1.0, March Testing the LAN Path to Your Router Troubleshooting a Network Using the Ping UtilityPing -n 10 IP address Testing the Path from Your Computer to a Remote DeviceWireless Connectivity Problems with Date and TimeViewing Available Networks Using the Restore Factory Settings Button Restoring the Factory Configuration SettingsLocal network LAN Table A-1. Default Configuration SettingsFeature Default Setting Router login Internet connectionPower Adapter Technical SpecificationsTable A-1. Specifications Feature Default Setting WirelessEnvironmental Interface SpecificationsRegulatory Compliance Document Link Appendix B Related DocumentsV1.0, March Index Index-2 Index-3 Index-4