3Com 3CR856-95 T

TROUBLESHOOTING

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 Cable/DSL 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 initialized 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. Refer to the

documentation supplied with your NIC for details.

■Ensure that you have configured your computer as described

in “Setting Up Your Computers” on page 19. 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. (e.g. http://192.168.1.1)

■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 NT/2000/XP,

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 “Using Discovery” on page 71.

dua08569-5aaa02.boo k Pag e 67 Thursday , Novem ber 7, 2002 3:09 PM