3Com 3CRWER200-75 Router Manual PDF (Setup & Configuration Guide)

Page 86 / 128 Scroll up to view Page 81 - 85

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C

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Select the Routing table tab to display routing information used by the

Router. The information is displayed in the form at shown as below.

Selecting

Support/Feedback

from the main menu displays the

Support

and

Feedback

screens.

Support

Support Screen

Selecting the

Support

option on the main menu displays the support links

screen, which contains a list of Internet links that provide information and

support concerning the Router

/

Routing Table

Support/Feedback

Page 87 / 128

Status and Logs

91

Feedback

Feedback Screen

Selecting the

Feedback

option displays the Feedback screen and allows

you to provide feedback to 3Com on the operation of your Router . This

screen should not be used to obtain technical support.

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Page 89 / 128

6

T

ROUBLESHOOTING

Basic Connection

Checks

■

Check that the Router is connected to your computers and to the

cable/DSL modem, and that all the equipment is powered on. Check

that the LAN Status and Cable/DSL Status LEDs on the Router 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

Router

Configuration

Screens

If you have connected your Router and computers together but cannot

browse to the Router configuration screens, check the following:

■

Confirm that the physical connection between your computer and the

Router is OK, and that the LAN Status LEDs on the Router 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 Router to 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 the

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104

C

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6: T

ROUBLESHOOTING

Connections

tab and click on the

LAN Settings

button at the bottom.

Make sure that the

Proxy Server

option is unchecked.

■

If you cannot browse to the Router, use the

winipcfg

utility in

Windows 95/98/ME to verify that your computer has received the

correct address information from the Router. 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 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, use the

ipconfig

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

cable/DSL modem is OK, and that the link status LEDs on both Router

and modem are illuminated.

■

Confirm that the connection between the modem and the cable/DSL

interface is OK.

■

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.

■

For DSL users, check that the PPPoE 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.

■

For cable users, check whether your ISP requires a fixed MAC

(Ethernet) address. If so, use the

Clone MAC Address

feature in the

Router to ensure that the correct MAC address is presented.

■

For cable users, check whether your ISP requires a fixed

Host Name

. If

so, enter the required

Host Name

in the

Internet Settings

screen.

■

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

.

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