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Cisco Systems WRT54GP2 manual Appendix A Troubleshooting, Common Problems and Solutions

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Appendix A: Troubleshooting

Wireless-G Broadband Router with 2 Phone Ports

This appendix provides solutions to problems that may occur during the installation and operation of the Router. Read the description below to solve your problems. If you can't find an answer here, check the Internet phone service provider website or the Linksys website at www.linksys.com.

Common Problems and Solutions

1.I don’t hear a dial tone, and the PHONE1 (or PHONE2) LED is not lit. Go through this checklist until your problem is solved:

•Make sure the telephone is plugged into the appropriate port, Phone 1 or Phone 2.

•Disconnect and re-connect the RJ-11 telephone cable between the Router and telephone.

•Make sure your telephone is set to its tone setting (not pulse).

•Make sure your network has an active Internet connection. Try to access the Internet, and check to see if the Router’s Internet LED is lit. If you do not have a connection, power off your network devices, including the Router and cable/DSL modem. Wait 30 seconds, and power on the cable/DSL modem first. Then power on the Router and other network devices.

•Verify your account information and confirm that the phone line is registered with your Internet phone service provider.

2.I’m trying to access the Router’s Web-based Utility, but I do not see the login screen. Instead, I see a screen saying, “404 Forbidden.”

If you are using Windows Explorer, perform the following steps until you see the Web-based Utility’s login

screen (Netscape Navigator will require similar steps): A. Click File. Make sure Work Offline is NOT checked.

Appendix A: Troubleshooting

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Common Problems and Solutions

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Cisco Systems WRT54GP2 manual Appendix A Troubleshooting, Common Problems and Solutions

Contents

Installation and Troubleshooting Guide Wireless- GBroadband Router with 2 Phone Ports VoI PWireless-G Broadband Router with 2 Phone Ports How to Use this GuideCopyright and Trademarks word definitionChapter 2 Planning Your Wireless Network Table of ContentsChapter 4 Connecting the Router Chapter 5 Configuring the RouterAppendix G Warranty Information Appendix F SpecificationsAppendix D Windows Help Appendix E GlossaryList of Figures Figure 5-32 Administration Tab - Log Welcome Chapter 1 IntroductionWireless-G Broadband Router with 2 Phone Ports Chapter 1 IntroductionWireless-G Broadband Router with 2 Phone Ports What’s in this Guide?Chapter 4 Connecting the Router Chapter 5 Configuring the RouterYou also have other chapters available for reference Wireless-G Broadband Router with 2 Phone PortsAppendix H Regulatory Information Wireless-G Broadband Router with 2 Phone PortsAppendix I Contact Information Chapter 1 IntroductionNetwork Topology Chapter 2 Planning Your Wireless NetworkAd-Hoc versus Infrastructure Mode Wireless-G Broadband Router with 2 Phone PortsWireless-G Broadband Router with 2 Phone Ports Network LayoutChapter 2 Planning Your Wireless Network Network LayoutThe Back Panel Wireless-G Broadband Router with 2 Phone Ports The Front PanelWireless-G Broadband Router with 2 Phone Ports Proceed to “Chapter 4 Connecting the Router.”Internet Chapter 3 Getting to Know the RouterChapter 3 Getting to Know the Router Wireless-G Broadband Router with 2 Phone PortsThe Front Panel Overview Chapter 4 Connecting the RouterWireless-G Broadband Router with 2 Phone Ports Chapter 4 Connecting the RouterWireless-G Broadband Router with 2 Phone Ports Connection InstructionsWireless-G Broadband Router with 2 Phone Ports Chapter 5 Configuring the RouterOverview Wireless SetupWireless-G Broadband Router with 2 Phone Ports SecurityWireless-G Broadband Router with 2 Phone Ports AdministrationVoice Applications & GamingWireless-G Broadband Router with 2 Phone Ports How to Access the Web-based UtilityStatus Internet Setup The Setup Tab - Basic SetupWireless-G Broadband Router with 2 Phone Ports Static IP Wireless-G Broadband Router with 2 Phone PortsPPPoE RAS for SingTel Wireless-G Broadband Router with 2 Phone PortsChapter 5 Configuring the Router The Setup Tab - Basic Setup Wireless-G Broadband Router with 2 Phone PortsPPTP Wireless-G Broadband Router with 2 Phone Ports Heart Beat SignalOptional Settings Network SetupWireless-G Broadband Router with 2 Phone Ports Router IPWireless-G Broadband Router with 2 Phone Ports Network Address Server Settings DHCPLocal IP Address. The default value is Subnet Mask. The default value isTime Setting The Setup Tab - DDNSWireless-G Broadband Router with 2 Phone Ports DDNS Wireless-G Broadband Router with 2 Phone PortsDynDNS.org TZO.comWireless-G Broadband Router with 2 Phone Ports The Setup Tab - MAC Address CloneMAC Clone Wireless-G Broadband Router with 2 Phone Ports The Setup Tab - Advanced RoutingChapter 5 Configuring the Router The Setup Tab - Advanced Routing Wireless-G Broadband Router with 2 Phone PortsWireless-G Broadband Router with 2 Phone Ports The Wireless Tab - Basic Wireless SettingsWireless-G Broadband Router with 2 Phone Ports The Wireless Tab - Wireless SecurityFigure 5-15 Wireless Tab - Wireless Security WPA Pre-Shared Key Chapter 5 Configuring the RouterChapter 5 Configuring the Router Wireless-G Broadband Router with 2 Phone PortsThe Wireless Tab - Wireless Security Wireless-G Broadband Router with 2 Phone Ports The Wireless Tab - Wireless Network AccessWireless-G Broadband Router with 2 Phone Ports The Wireless Tab - Advanced Wireless SettingsFigure 5-20 Advanced Wireless Settings Chapter 5 Configuring the RouterWireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports The Security Tab - FilterChapter 5 Configuring the Router Filter IP Address RangeBlock WAN Requests Wireless-G Broadband Router with 2 Phone PortsWireless-G Broadband Router with 2 Phone Ports The Security Tab - VPN PassthroughVPN Passthrough The Applications & Gaming Tab - Port Range Forwarding The Voice TabWireless-G Broadband Router with 2 Phone Ports Port Range ForwardingFigure 5-26 Applications & Gaming Tab Port Triggering ip internet protocol a protocol used to send data over a networkWireless-G Broadband Router with 2 Phone Ports The Applications & Gaming Tab - UPnP ForwardingUPnP Forwarding FTP File Transfer Protocol. A protocol used to transfer files over a TCP/IP network Internet, UNIX, etc.. For example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the web server using FTP Wireless-G Broadband Router with 2 Phone PortsSNMP Simple Network Management Protocol. A widely used network monitoring and control protocol. Data is passed from SNMP agents, which are hardware and/or software processes reporting activity in each network device hub, router, bridge, etc. to the workstation console used to oversee the network. The agents return information contained in a MIB Management Information Base, which is a data structure that defines what is obtainable from the device and what can be controlled turned off, on, etc Wireless-G Broadband Router with 2 Phone PortsWireless-G Broadband Router with 2 Phone Ports The Applications & Gaming Tab - DMZWireless-G Broadband Router with 2 Phone Ports The Applications & Gaming Tab - QoSApplication-based QoS Port-based QoS Wireless-G Broadband Router with 2 Phone PortsSpecific Port# fields Voice QoS Wireless-G Broadband Router with 2 Phone PortsRouter Password The Administration Tab - ManagementWireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Backup and RestoreUPnP Wireless-G Broadband Router with 2 Phone Ports The Administration Tab - LogThe Administration Tab - Firmware Upgrade The Administration Tab - Factory DefaultsWireless-G Broadband Router with 2 Phone Ports runs a networking deviceWireless-G Broadband Router with 2 Phone Ports The Status Tab - VoiceInformation Line1 StatusWireless-G Broadband Router with 2 Phone Ports The Status Tab - RouterWireless-G Broadband Router with 2 Phone Ports The Status Tab - Local NetworkLocal Network Wireless The Status Tab - WirelessWireless-G Broadband Router with 2 Phone Ports Common Problems and Solutions Appendix A TroubleshootingWireless-G Broadband Router with 2 Phone Ports For Windows 98 and Millennium Wireless-G Broadband Router with 2 Phone Ports3. I need to set a static IP address on a PC For Windows Wireless-G Broadband Router with 2 Phone PortsFor Windows XP A. Click Start and Control Panel Wireless-G Broadband Router with 2 Phone Ports4. I want to test my Internet connection 3. In the Components checked are used by this connection box, highlight Internet Protocol TCP/IP, and click the Properties button. Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected Wireless-G Broadband Router with 2 Phone PortsIf you get a reply, the computer is communicating with the Router Wireless-G Broadband Router with 2 Phone Ports6. I am not able to access the Router’s Web-based Utility Setup page Wireless-G Broadband Router with 2 Phone Ports8. I need to set up a server behind my Router Wireless-G Broadband Router with 2 Phone PortsB. Enter any name you want to use for the Application Wireless-G Broadband Router with 2 Phone Ports EnabledApplication Start and End10. I can’t get the Internet game, server, or application to work Wireless-G Broadband Router with 2 Phone PortsD. Enter the Ethernet adapter’s IP address of the computer you want exposed to the Internet. This will bypass the NAT security for that computer. Please refer to “Appendix C Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address Wireless-G Broadband Router with 2 Phone Ports13. To start over, I need to set the Router to factory default Wireless-G Broadband Router with 2 Phone Ports14. My DSL service’s PPPoE is always disconnecting For Microsoft Internet Explorer 5.0 or higherWireless-G Broadband Router with 2 Phone Ports 16. I need to use port triggering Wireless-G Broadband Router with 2 Phone Ports 1362Wireless-G Broadband Router with 2 Phone Ports Frequently Asked QuestionsHow do I make a phone call? Can I make calls if my Internet connection is down?Where is the Router installed on the network? Wireless-G Broadband Router with 2 Phone PortsWhat is Network Address Translation and what is it used for? Is IPSec Passthrough supported by the Router?How do I get Half-Life Team Fortress to work with the Router? Wireless-G Broadband Router with 2 Phone PortsHow can I block corrupted FTP downloads? Appendix A Troubleshooting Wireless-G Broadband Router with 2 Phone PortsFrequently Asked Questions If all else fails in the installation, what can I do? Wireless-G Broadband Router with 2 Phone PortsReset the Router by holding down the Reset button for approximately five seconds. Reset your cable or DSL modem by powering the unit off and then on. Contact your Internet phone service provider for assistance. Refer to “Appendix H Contact Information” for contact information What is DMZ Hosting?What is the maximum number of VPN sessions allowed by the Router? Wireless-G Broadband Router with 2 Phone PortsDoes the Router pass PPTP packets or actively route PPTP sessions? Is the Router cross-platform compatible?What is the IEEE 802.11b standard? Wireless-G Broadband Router with 2 Phone PortsWhat is the IEEE 802.11g standard? What IEEE 802.11b features are supported?What is infrastructure mode? What is ad-hoc mode?What is roaming? What is ISM band? Wireless-G Broadband Router with 2 Phone PortsWhat is Spread Spectrum? Appendix A TroubleshootingWhat is DSSS? What is FHSS? And what are their differences? Wireless-G Broadband Router with 2 Phone PortsWhat is WEP? What is WPA?How do I resolve issues with signal loss? Wireless-G Broadband Router with 2 Phone PortsI have excellent signal strength, but I cannot see my network How many channels/frequencies are available with the Router?Appendix A Troubleshooting Wireless-G Broadband Router with 2 Phone PortsFrequently Asked Questions Security Precautions Appendix B Wireless SecurityWireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Security Threats Facing Wireless NetworksThere are several ways that WEP can be maximized Wireless-G Broadband Router with 2 Phone PortsWPA RADIUS. WPA used in coordination with a RADIUS server. This should only be used when a RADIUS server is connected to the Router or other device. First, select the type of WPA algorithm, TKIP or AES. Enter the RADIUS server’s IP Address and port number, along with a key shared between the device and the server. Last, enter a Group Key Renewal period, which instructs the device how often it should change the encryption keys Wireless-G Broadband Router with 2 Phone PortsWireless-G Broadband Router with 2 Phone Ports Windows 98 or Me InstructionsAppendixCFindingtheMACAddressandIPAddressforYour Ethernet Adapter For the Router’s Web-based Utility Windows 2000 or XP InstructionsWireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Appendix D Windows HelpTCP/IP Shared ResourcesAppendix D Windows Help Wireless-G Broadband Router with 2 Phone PortsWireless-G Broadband Router with 2 Phone Ports Appendix E GlossaryAppendix E Glossary Byte - A unit of data that is usually eight bits long Wireless-G Broadband Router with 2 Phone PortsDynamic IP Address - A temporary IP address assigned by a DHCP server Wireless-G Broadband Router with 2 Phone PortsAppendix E Glossary IP Internet Protocol - A protocol used to send data over a network Wireless-G Broadband Router with 2 Phone PortsMulticasting - Sending data to a group of destinations at once Wireless-G Broadband Router with 2 Phone PortsAppendix E Glossary Router - A networking device that connects multiple networks together Wireless-G Broadband Router with 2 Phone PortsSSID Service Set IDentifier - Your wireless networks name Wireless-G Broadband Router with 2 Phone PortsAppendix E Glossary Upload - To transmit a file over a network Wireless-G Broadband Router with 2 Phone PortsAppendix F Specifications Dimensions Wireless-G Broadband Router with 2 Phone Ports Appendix G Warranty InformationAppendix G Warranty Information Wireless-G Broadband Router with 2 Phone PortsWireless-G Broadband Router with 2 Phone Ports Appendix H Regulatory InformationIndustry Canada Canada Wireless-G Broadband Router with 2 Phone PortsAppendix I Contact Information Appendix I Contact Information Wireless-G Broadband Router with 2 Phone Ports