3Com OfficeConnect 3CRWDR100B-72 User Manual

Also see for 3CRWDR100A-72 - OfficeConnect ADSL Wireless 11g Firewall Router: User guide

Contents

6 TROUBLESHOOTINGBasic ConnectionChecks■ Check that the Router is connected to your computers and to thetelephone line, and that all the equipment is powered on. Check thatthe LAN Status and SYNC LEDs on the Router are illuminated, and thatany corresponding LEDs on the NIC are also illuminated.■ Ensure that the computers have completed their start-up procedureand are ready for use. Some network interfaces may not be correctlyinitialized until the start-up procedure has completed.■ If the link status LED does not illuminate for a port that is connected,check that you do not have a faulty cable. Try a different cable.Browsing to theRouterConfigurationScreensIf you have connected your Router and computers together but cannotbrowse to the Router configuration screens, check the following:■ Confirm that the physical connection between your computer and theRouter is OK, and that the LAN Status LEDs on the Router andnetwork adapter are illuminated and indicating the same speed(10Mbps or 100Mbps). Some NICs do not have status LEDs, in whichcase a diagnostic program may be available that can give you thisinformation.■ Ensure that you have configured your computer as described inChapter 3. Restart your computer while it is connected to the Routerto ensure that your computer receives an IP address.■ When entering the address of the Router into your web browser,ensure that you use the full URL including the http:// prefix (e.g.http://192.168.1.1).■ Ensure that you do not have a Web proxy enabled on your computer.Go to the Control Panel and click on Internet Options. Select theConnections tab and click on the LAN Settings button at the bottom.Make sure that the Proxy Server option is unchecked.