Linksys WRT400N manual Appendix a Troubleshooting

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Appendix A

Troubleshooting

Appendix A:

Troubleshooting

Your computer cannot connect to the Internet.

Follow these instructions until your computer can connect to the Internet:

•• Make sure that the Router is powered on. The Power LED should be green and not flashing.

•• If the Power LED is flashing, then power off all of your network devices, including the modem, Router, and computers. Then power on each device in the following order:

1.Cable or DSL modem

2.Router

3.Computer

•• Check the cable connections. The computer should be connected to one of the ports numbered 1-4 on the Router, and the modem must be connected to the Internet port on the Router.

The modem does not have an Ethernet port.

The modem is a dial-up modem for traditional dial-up service. To use the Router, you need a cable/DSL modem and high-speed Internet connection.

You cannot use the DSL service to connect manually to the Internet.

After you have installed the Router, it will automatically connect to your Internet Service Provider (ISP), so you no longer need to connect manually.

The DSL telephone line does not fit into the Router’s Internet port.

The Router does not replace your modem. You still need your DSL modem in order to use the Router. Connect the telephone line to the DSL modem, and then insert the setup CD into your computer. Click Setup and follow the on‑screen instructions.

When you double-click the web browser, you are prompted for a username and password. If you want to get rid of the prompt, follow these instructions.

Launch the web browser and perform the following steps (these steps are specific to Internet Explorer but are similar for other browsers):

1.Select Tools > Internet Options.

2.Click the Connections tab.

3.Select Never dial a connection.

4.Click OK.

The Router does not have a coaxial port for the cable connection.

The Router does not replace your modem. You still need your cable modem in order to use the Router. Connect your cable connection to the cable modem, and then insert the setup CD into your computer. Click Setup and follow the on‑screen instructions.

The computer cannot connect wirelessly to the network.

Make sure the wireless network name or SSID is the same on both the computer and the Router. If you have enabled wireless security, then make sure the same security method and key are used by both the computer and the Router.

You need to modify the settings on the Router.

Open the web browser (for example, Internet Explorer or Firefox), and enter the Router’s IP address in the address field (the default IP address is 192.168.1.1). When prompted, enter the password to the Router (the default is admin). Click the appropriate tab to change the settings.

WEB: If your questions are not addressed here, refer to the Linksys website, www.linksys.com

Simultaneous Dual-Band Wireless-N Router

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Contents Simultaneous Dual-Band Wireless-N Router Icon Descriptions Online ResourcesCopyright and Trademarks Table of Contents Appendix D Regulatory Information Appendix E Software End User License AgreementFront Panel Back PanelHorizontal Placement Wall-Mounting PlacementGeneral Network Security Guidelines Additional Security TipsInternet Setup How to Access the Web-Based UtilitySetup Basic Setup LanguagePPPoE Automatic Configuration DhcpStatic IP PptpOptional Settings L2TPTelstra Cable Network Setup Network Address Server Settings DhcpRouter Address Ddns Service Setup DdnsTime Setting DynDNS.orgMAC Address Clone Setup MAC Address CloneSetup Advanced Routing Advanced RoutingGHz or 2.4 GHz Wireless Settings Wireless Basic Wireless SettingsConfiguration View Simultaneous NetworksWi-Fi Protected Setup Method #1Method #2 Security Mode Wireless Wireless SecurityWireless Security Method #3WPA2 Personal WPA2 EnterpriseRadius Access Restriction Wireless Wireless MAC FilterWireless MAC Filter MAC Address Filter ListWireless Advanced Wireless Settings GHz or 2.4 GHz Advanced WirelessFirewall Security FirewallSecurity VPN Passthrough Web FiltersInternet Access To create an Internet Access PolicyBlocked Applications Single Port Forwarding Applications and Gaming Single Port ForwardingApplications and Gaming Port Range Forwarding Port Range ForwardingPort Triggering Applications and Gaming DMZApplications & Gaming Port Triggering Triggered RangeApplications and Gaming QoS QoS Quality of ServiceInternet Access Priority CategoryEthernet Port Online Games MAC AddressGames Add a New GameAdministration Management Router PasswordSummary Log Administration Log Administration Diagnostics Ping TestAdministration Factory Defaults Administration Firmware UpgradeStatus Router Status Local Network Status Wireless Network5GHz/2.4GHz Wireless Network Internet ConnectionAppendix a Troubleshooting Appendix B Specifications Limited Warranty Obtaining Warranty ServiceExclusions and Limitations Technical Support FCC Radiation Exposure Statement Safety NoticesFCC Statement Industry Canada StatementWireless Disclaimer Avis d’Industrie CanadaRestrictions dans la bande 5 GHz Dansk Danish Miljøinformation for kunder i EU Regulatory Information Norsk Norwegian Miljøinformasjon for kunder i EU Regulatory Information Cisco Products Software LicensesSchedule Cisco Software License Agreement Software End User License Agreement Software End User License Agreement Schedule 3-A Schedule Network Magic FeaturesSchedule Open Source and Third Party Licenses GNU General Public LicenseSoftware End User License Agreement Software End User License Agreement No Warranty Schedule 3-BEND of Schedule 3-A GNU Lesser General Public License Software End User License Agreement Software End User License Agreement Software End User License Agreement Schedule 3-C END of Schedule 3-BOpenSSL License Original SSLeay LicenseEND of Schedule 3-C