3Com Network Router 3CRWDR200A-75 User Manual

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102 CHAPTER 6: TROUBLESHOOTING
■ If you cannot browse to the Router, use the winipcfg utility in
Windows XP to verify that your computer has received the correct
address information from the Router. From the Start menu, choose
Run and then enter
cmd. Check that the computer has an IP address of
the form 192.168.1.xxx (where xxx is in the range 2-254), the subnet
mask is 255.255.255.0, and the default Router is 192.168.1.1 (the
address of the Router). If these are not correct, use the Release and
Renew functions to obtain a new IP address from the Router. Under
Windows 2000,XP,and Vista, use the ipconfig/all
command-line utility
to perform the same functions.
■ If you still cannot browse to the Router, then use the Discovery
program on the accompanying CD-ROM as described in Appendix A
.
Connecting to the
Internet
If you can browse to the Router configuration screens but cannot access
sites on the Internet, check the following:
■ Confirm that the physical connection between the Router and the
broadband connection is OK, and that the Sync DSL LED and Data DSL
LED on the Router are illuminated. If the Sync DSL LED is off, check the
physical connection path to the ADSL line. If the Sync DSL LED is on,
but the Data DSL LED is off, confirm the login details are correct and
the ADSL service is available (contact your ISP for the status)
■ Confirm that ADSL filter is connected.
■ Ensure that you have entered the correct information into the Router
configuration screens as required by your Internet Service Provider. Use
the “Internet Settings” screen to verify this.
■ Check that the PPPoE, PPPoA or PPTP user name, password and
service name are correct, if these are required. Only enter a PPPoE
service name if your ISP requires one.
■ Ensure that your computers are not configured to use a Web proxy.
On Windows computers, this can be found under Control Panel >
Internet Options > Connections.
Forgotten Password
and Reset to
Factory Defaults
If you can browse to the Router configuration screen but cannot log on
because you do not know or have forgotten the password, follow the
steps below to reset the Router to it’s factory default configuration.
CAUTION: All your configuration changes will be lost, and you will need
to run the configuration wizard again before you can re-establish your

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