Linksys WRT120N 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 lit 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 onscreen 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 onscreen 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.linksysbycisco.com

Wireless-N Home Router

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Contents Wireless-N Home Router Copyright and Trademarks Icon DescriptionsOnline Resources Table of Contents Appendix E Software End User License Agreement Warranty InformationAppendix D Regulatory Information Back Panel Horizontal PlacementFront Panel Wall-Mounting Placement Suggested Mounting HardwareGeneral Network Security Guidelines Additional Security TipsAccess the Browser-Based Utility Setup Basic SetupInternet Setup LanguageAutomatic Configuration Dhcp Static IPPPPoE PptpTelstra Cable Optional SettingsL2TP Network Setup Dhcp Server SettingRouter IP Dhcp ReservationSetup Ddns Time SettingsDdns Service DynDNS.orgSetup MAC Address Clone Setup Advanced RoutingMAC Address Clone Advanced RoutingRouting Table Wireless Basic Wireless SettingsBasic Wireless Settings Manual Method #2 Wi-Fi Protected SetupMethod #1 Wireless Wireless Security Wireless SecuritySecurity Mode Method #3Radius WPA EnterpriseWPA2 Enterprise Wireless Wireless MAC Filter Wireless MAC FilterAccess Restriction MAC Address Filter ListAdvanced Wireless Wireless Client ListSecurity Firewall FirewallInternet Filter Web FilterInternet Access Policy Security VPN PassthroughVPN Passthrough SummarySummary Applications and Gaming Single Port Forwarding Applications and Gaming Port Range ForwardingSingle Port Forwarding Port Range ForwardingPort Range Triggering Applications & Gaming Port Range TriggeringApplications and Gaming DMZ QoS Quality of Service Applications and Gaming QoSOnline Games MAC AddressEthernet Port Voice DeviceAdministration Management Router AccessLocal Management Access Remote Management AccessAdministration Log Administration DiagnosticsSystem Reboot LogAdministration Factory Defaults Administration Firmware UpgradeDiagnostics Factory DefaultsStatus Router Status Local NetworkStatus Wireless Network Wireless NetworkAppendix a Troubleshooting Troubleshooting Appendix B Specifications Exclusions and Limitations Limited WarrantyObtaining Warranty Service Technical Support GeneralFCC Radiation Exposure Statement Safety NoticesFCC Statement Avis d’Industrie Canada Wireless DisclaimerIndustry Canada Statement Изисквания Приложими National Restrictions Wireless Equipment Wireless-N/G/A/B ProductsCE Marking Product Usage Restrictions Italy LatviaGHz Restrictions Third-Party Software or FirmwareDansk Danish Miljøinformation for kunder i EU Regulatory Information Norsk Norwegian Miljøinformasjon for kunder i EU Regulatory Information Schedule Cisco Software License Agreement Cisco ProductsSoftware Licenses Software End User License Agreement Software End User License Agreement Schedule Network Magic Features Schedule Open Source and Third Party LicensesSchedule 3-A GNU General Public LicensePreamble Software End User License Agreement END of Schedule 3-A No WarrantySchedule 3-B 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