3Com 3CRWE51196 User Guide - Page 55

Troubleshooting, Basic Connection Checks, Browsing to the Gateway Configuration Screens

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6 TROUBLESHOOTING Basic Connection Checks I Check that the Gateway is connected to your computers and to the cable/DSL modem, and that all the equipment is powered on. Check that the LAN and WAN port link status LEDs on the Gateway are illuminated, and that any corresponding LEDs on the cable/DSL modem and the NIC are also illuminated. I Ensure that the computers have completed their start-up procedure and are ready for use. Some network interfaces may not be correctly initialised until the start-up procedure has completed. I 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 the Gateway Configuration Screens If you have connected your Gateway and computers together but cannot browse to the Gateway configuration screens, check the following: I Confirm that the physical connection between your computer and the Gateway is OK, and that the link status LEDs on the Gateway and NIC are illuminated and indicating the same speed (10Mbps or 100Mbps). Some NICs do not have status LEDs, in which case a diagnostic program may be available that can give you this information. I Ensure that you have configured your computer as described in Chapter 3, Setting Up Your Computers. Restart your computer while it is connected to the Gateway to ensure that your computer receives an IP address. I When entering the address of the Gateway into your web browser, ensure that you include the full URL including the http:// prefix (eg. http://192.168.1.1). I If you cannot browse to the Gateway, use the winipcfg utility in Windows 95/98/ME to verify that your computer has received the correct address information from the Gateway. From the Start menu, choose Run and then enter winipcfg. 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 Gateway is 192.168.1.1 (the address of the Gateway). If these are not correct, use the Release and Renew functions to obtain a new IP address from the Gateway. Under Windows 2000, use the ipconfig command-line utility to perform the same functions. I If you still cannot browse to the Gateway, then use the Discovery program on the accompanying CD-ROM as described in Appendix A.

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6
T
ROUBLESHOOTING
Basic Connection
Checks
■
Check that the Gateway is connected to your computers and to the cable/DSL
modem, and that all the equipment is powered on. Check that the LAN and
WAN port link status LEDs on the Gateway are illuminated, and that any
corresponding LEDs on the cable/DSL modem and the NIC are also illuminated.
■
Ensure that the computers have completed their start-up procedure and are
ready for use. Some network interfaces may not be correctly initialised 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 the
Gateway
Configuration Screens
If you have connected your Gateway and computers together but cannot browse
to the Gateway configuration screens, check the following:
■
Confirm that the physical connection between your computer and the
Gateway is OK, and that the link status LEDs on the Gateway and NIC are
illuminated and indicating the same speed (10Mbps or 100Mbps). Some NICs
do not have status LEDs, in which case a diagnostic program may be available
that can give you this information.
■
Ensure that you have configured your computer as described in Chapter 3,
Setting Up Your Computers
. Restart your computer while it is connected to the
Gateway to ensure that your computer receives an IP address.
■
When entering the address of the Gateway into your web browser, ensure that
you include the full URL including the http:// prefix (eg.
).
■
If you cannot browse to the Gateway, use the
winipcfg
utility in Windows
95/98/ME to verify that your computer has received the correct address
information from the Gateway.
From the
Start
menu, choose
Run
and then
enter
winipcfg
. 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 Gateway is 192.168.1.1 (the address of the
Gateway). If these are not correct, use the
Release
and
Renew
functions to
obtain a new IP address from the Gateway. Under Windows 2000, use the
ipconfig
command-line utility to perform the same functions.
■
If you still cannot browse to the Gateway, then use the Discovery program on
the accompanying CD-ROM as described in Appendix A.