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You may need to make some changes to the configuration of your
computers in order to communicate with the Gateway. 

PPPoE Client Software

If you have PPPoE client software installed on your computer, you will
need to disable it.  To do this :-

1.

From the Windows Start menu, select 

Settings > Control Panel

.

2.

Double click on 

Internet Options

.

3.

Select the 

Connections

Tab.   A screen similar to Figure 1 should be

displayed.

4.

Select the 

Never Dial a Connection

option.

You may wish to
remove the PPPoE
client software from
your computer to
free resources, as it is
not required for use
with the Gateway.

Configuring your Computer to Obtain an IP Address Automatically

Obtaining an IP Address Automatically

Follow the instructions below for your particular operating system to ensure
that your computers are configured to obtain an IP address automatically.

For computers using Windows 2000:

1.

From the Windows 

Start 

Menu, select 

Settings > Control Panel

.

2.

Double click on 

Network 

and

Dial-Up connections

3.

Double click on 

Local Area Connection

.

4.

Click on 

Properties

.

5.

A screen similar to Figure 2 should be displayed.  Select Internet
Protocol TCP/IP and click on 

Properties

.

6.

Ensure that the options 

Obtain an IP Address automatically

, and

Obtain DNS servers automatically

are both selected as shown in

figure 3.  Click 

OK

.

7.

Restart your computer.

For computers using Windows 95, 98 and ME:

1.

From the Windows 

Start

Menu, select 

Settings > Control Panel

.

2.

Double click on 

Network

.  Select the 

TCP/IP

item for your network

card as shown in figure 4 and click on 

Properties

.

3.

In the TCP/IP dialog, select the 

IP Address

tab, and ensure that

Obtain IP address automatically

is selected as shown in figure 5.

Click 

OK

.

4.

Restart your computer.

If you are experiencing difficulties with your installation, try the following:

• 

Ensure all networking equipment is switched on.

The Gateway

should be showing a green Power LED.  If it is not, check the power
adapter connection.  Do not use any power adapter with your
Gateway other than the one supplied.

• 

Ensure the Cable/DSL Modem is connected.

The Gateway

should be displaying a yellow Cable/DSL Status LED.  If no LED is
displayed, check that your modem is switched on and that it is
connected to the Cable/DSL port with an Ethernet cable.

• 

Ensure that the computer is connected to the Gateway.

The

Gateway should be displaying a green or yellow LAN Status LED.  If
it is not, check that the computer is connected to one of the
Gateway's LAN ports with an Ethernet cable.

• 

Ensure your computer is configured correctly.

Make sure that the

computer obtains an IP address automatically.  See Section 2 for
details.  Ensure that the NIC card is configured for autonegotiation.

• 

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 

Connections

tab and click on the 

LAN Settings

button at

the bottom.  Make sure that the 

Use Proxy Server

option is

unchecked.

• 

If you are unable to access the Gateway's Web interface.

Launch a web browser and enter 

http://192.168.1.1

.  If you chose

a different IP address, use that instead.  Ensure that you include the

http://

prefix.

• 

If you cannot remember the Gateway IP address.

Run the

Gateway Discovery application from the CD-ROM. This will always
connect you to the Gateway.

Running the Configuration Wizard

1.

If you haven’t already done so, restart your computer.  

2.

Launch your web browser and attempt to contact the Gateway by
typing the following URL in the location bar: 

http://192.168.1.1

,  If

you are able to access the Login page, then your computer has
correctly received an IP address from the Gateway.

3.

Login using the default password 

admin

. The Wizard will attempt to

launch automatically, but if it fails, select the 

Wizard

tab and click on

the 

Wizard

... button.

4.

Where possible, the wizard will recommend settings for most
parameters.  However, there are some settings which you must
provide.  Most of these will have been provided to you by your ISP
when you set the account up. Refer to section 1 for details.

5.

By default, 3Com recommends that you leave the LAN IP address for
the Gateway as 192.168.1.1.  However, if you should choose to
change it, make a note of the new address :

6.

When the DHCP Server Settings page is displayed, make sure that the

Enable the DHCP Server with the following settings

option is selected.

Connecting to the Internet

When the Wizard has completed, attempt to browse to an Internet web site,
such as 

www.3com.com

.  If you can successfully access this site, then your

computer, Gateway and internet modem have been correctly configured.

Refer to the Problem Solving section if you cannot make contact with the
Gateway or the Internet.

Connecting Additional Computers

You may now connect additional computers to the remaining 10/100 LAN
ports on the Gateway. Ensure that each computer you connect to the
Gateway has been configured as described in section 2.  You should restart
each computer whilst it is connected to the Gateway before you try to use it
to access the Internet.

3

CONFIGURING YOUR GATEWAY 

PROBLEM SOLVING   

Gateway's LAN IP Address

_______._______._______._______

Before you install and configure your Gateway, you need the following
additional information.  If you do not have this information, contact
your Internet Service Provider.  Space is provided below for you to
record this information.

If your ISP allocates IP information dynamically over PPPoE, you need
your User Name and Password:

If your ISP allocates fixed or static IP information, you need the
following information:

Note: 

If your ISP allocates IP information dynamically over a protocol

other then PPPoE, you do not need any further information.

Connecting Your Gateway

1.

Connect the power adapter to the Gateway and wait for the Alert 
LED to stop flashing.

2.

Ensure that your modem and computer are all switched on.

3.

Use the supplied cable to connect the Gateway's Ethernet Cable/ 
DSL port to the modem.  Check that the Cable/DSL Status LED lights.

4.

Connect your computer to one of the 10/100 LAN ports on the 
Gateway.  Check that the LAN Port Status LED lights.

Refer to Figure 6 for an example configuration.

PPPoE User Name

PPPoE Password

IP Address

_______._______._______._______

Subnet Mask

_______._______._______._______

Default Gateway address

_______._______._______._______

DNS address

_______._______._______._______

1  INSTALLING YOUR GATEWAY 

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

2  CHANGING YOUR COMPUTER'S CONFIGURATION

OfficeConnect

Cable/DSL Gateway

Your existing  

Cable/DSL  

Modem

OfficeConnect 

Switch

Of

ficeConnect

 Cable/DSL 

Gateway

3C

85

5

LAN

 Status

Cable/DSL

Ale

rt

Internet

Figure 6

Example Network with OfficeConnect Cable/DSL Gateway.

For further Problem Solving and Technical Support information, 
refer to the Gateway User Guide

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