Manuals / 3Com / Computer Equipment / Network Router

3Com 3CRWE754G72-A, 3CRWE754G72-B, WL-540A, WL-540B manual Frequently Asked Questions

Models: 3CRWE754G72-A, 3CRWE754G72-B WL-540B 3CRWE754G72-A WL-540A

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Frequently Asked Questions

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Ensure that one of your computers has a copy of the new software image file stored on its hard disk or available on CD-ROM.

The latest software is available on 3Com’s Web site at:

www.3com.com

1Remove power from the Router and disconnect the telephone line and all your computers, except for the one computer with the software image.

2You will need to reconfigure this computer to obtain an IP address automatically (see “Obtaining an IP Address Automatically” on page 23)

3Restart the computer, and re-apply power to the Router.

4Using the Web browser on the computer, enter the following URL in the location bar:

http://192.168.1.1.

This will connect you to the Recovery utility in the Router.

5Follow the on-screen instructions. Enter the path and filename of the software image file.

6When the upload has completed, the Router will restart, run the self-test and, if successful, resume normal operation.

7Refer to the Installation Guide to reconnect your Router to the telephone line and the computers in your network. Do not forget to reconfigure the computer you used for the software upload.

If the Router does not resume normal operation following the upload, it may be faulty. Contact your supplier for advice.

Frequently Asked Questions

How do I reset the Router to Factory Defaults?

See “Forgotten Password and Reset to Factory Defaults” on page 72.

How many computers on the LAN does the Router support?

A maximum of 253 computers on the LAN are supported.

How many wireless clients does the Router support?

A maximum of 128 wireless clients are supported.

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3Com 3CRWE754G72-A, 3CRWE754G72-B, WL-540A manual Frequently Asked Questions, How do I reset the Router to Factory Defaults?

Contents

OfficeConnect Adsl Wireless 11g Firewall Router User Guide 3Com Corporation Campus Drive Marlborough, MA USA Contents Running the Setup Wizard Troubleshooting Technical Specifications About this Guide Conventions Document to 3Com atPddtechpubscomments@3com.com Configure your Router About this Guide Wireless11g OfficeConnect AdslFirewall Router Example Network Without a Gateway Router Advantages DSL Sync LED Green Power LED GreenMinimum System Component Requirements Front Panel Four LAN Status LEDs Wireless LAN Wlan Status LED GreenWireless Antennae Rear Panel Reset Button Power Adapter SocketAdsl Port Safety Information IntroductionPositioning the Router Powering Up ConnectingRouter Either Connecting the Gateway Installing with a splitter Installing without a splitter Hardware Installation Obtaining an IP Address Automatically Setting UP Your Computers Local Area Properties Screen Restart your computer Windows XP From the Windows Start menu, select Control PanelWindows 95/98/ME Proxy Software Wizard Accessing Router Login Screen Accessing the Wizard PPPoE Screen PPPoE Mode RFC1483 Routed Mode PPPoA Mode RFC1483 Routed Configuration Screen RFC1483 Bridged Mode RFC1483 Bridged Configuration Screen Running the Setup Wizard Pages ConfigurationNavigating Through the Router LAN Setup LAN Setup Dhcp Clients List Dhcp Clients List Screen Wireless Settings Screen Wireless Encryption Encryption Screen WPA-PSK no server WPA-PSK no server Screen Bit WEP 128-bit WEP Screen WPA with Radius Server Screen Server Connection Type Connection Type Screen Internet Settings PPPoA PPPoA Settings Screen Single PC Enter a value of 0 to disable this timeout Click Apply RIP Routing Information Protocol RIP allows the network RoutingSupports the following routing functionality Static Routing Routing Disabled RIP is not enabled for the WAN or LAN interface Select the Operation Mode Routing Table Screen Firewall Special Applications Special Applications Screen Virtual Servers Virtual Servers Screen Access Control Access Control Screen Add PC Screen Click OK to add the settings URL Blocking URL Blocking Screen Click Add Rule Add Schedule Rule Screen MAC Address Filtering Screen Filtering DMZ DMZ Screen Remote Admin NAT EnableUniversal Plug and Play WAN Ping Blocking Remote Administration Agent installed Snmp Simple Network Management Protocol allows remoteSnmp Community Snmp Trap Snmp Trap Screen Restart Router Perform certain administrative functionsDefault System Tools Settings Admin Password Admin Password Screen Time and Time Zone Time and Time Zone screen This screen shows modem status and statistics Router Configuration Browsing to the Router Configuration Screens Basic ConnectionChecks Factory Defaults Connecting toForgotten Password Reset to Networking Troubleshooting How many computers on the LAN does the Router support? Frequently Asked QuestionsHow do I reset the Router to Factory Defaults? How many wireless clients does the Router support? Does the Router support virtual private networks VPNs? Where can I download software updates for the Router? TCP working together. TCP/IP is an internationally adopted Protocol SuiteManaging the Router over the Network Internet protocol suite consists of a well-defined set Type Two Type One How does a Device Obtain an IP Address and Subnet Mask? Appendix a IP Addressing OfficeConnect Adsl Wireless 11g Firewall Router InterfacesWlan Interfaces Weight Operating TemperaturePower Dimensions Maximum cable length of 100m 327.86 ft System Requirements Operating Systems Appendix B Technical Specifications Important Safety Information Safety Information Wichtige Sicherheitshinweise Consignes Importantes de Sécurité Appendix C Safety Information 3Com Corporation Agreement Appendix D END User Software License Agreement Purchase Product to Gain Service BenefitsServices Register Your Telephone Technical Access SoftwareDownloads Contact Us Australia 800 678 Philippines Published 16th July Glossary Glossary Ethernet Address See MAC address Glossary Glossary Traffic The movement of data packets on a network Area Glossary Index Index You are located ChannelsFCC Statement Local regulatory agencies Model Description 3CRWE754G72-A/B Conformity Statement U.S CE StatementEurope RF Exposure Compliance 108 Page DUA0075-4AAA01 Rev