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3Com OfficeConnect 3C612 Quick Start Manual

Made by: 3Com
Type: Quick Start Guide
Category: Network Router
Pages: 16
Size: 5.65 MB


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Remote 612

ADSL Router (3C612)

Quick Start Guide



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3Com Corporation 

5400 Bayfront Plaza 

Santa Clara, California 95052-8145

Copyright © 2001 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any
means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation
on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty of any kind, either implied or expressed, including, but not limited
to, the implied warranties of merchantability and fitness for a particular purpose. 3Com may make improvements or changes in the
product(s) and/or the program(s) described in this documentation at any time.


If you are a United States government agency, then this documentation and the software described herein are provided to you subject
to the following: 

United States Government Legend: All technical data and computer software is commercial in nature and developed solely at private
expense. Software is delivered as Commercial Computer Software as defined in DFARS 252.227-7014 (June 1995) or as a commercial
item as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license
for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14
(June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program
or documentation contained in, or delivered to you in conjunction with this Quick Start Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other

3Com and OfficeConnect are registered trademarks of 3Com Corporation. The 3Com logo is a trademark of 3Com Corporation. All other
company and product names may be trademarks of their respective companies.


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Unpack the contents of your package, and ensure that it includes
the following items:

• AC/DC Power Adapter

• LAN (Ethernet) cable, RJ-45/RJ-45 (CAT-5)

• ADSL cable, RJ-11/RJ-11

• Rubber feet (4)

Congratulations on choosing the 3Com





612 ADSL Router, your ADSL (Asymmetric Digital Subscriber
Line) broadband access solution.

The OfficeConnect Remote 612 ADSL Router allows one or more
networked computers to connect to the Internet or a remote LAN
(Local Area Network). Once connected, local users can access the
Internet over 100 times faster than using a dial-up connection.

Setting up the OfficeConnect Remote 612 ADSL Router is a three-
step process:

1) Unpacking and positioning the OfficeConnect Remote 612

ADSL Router

2) Running the Installation Procedure

3) Configuring the OfficeConnect Remote 612 ADSL Router

This guide describes how to install and configure the
OfficeConnect Remote 612 ADSL Router for shared Internet
access. To set up your OfficeConnect Remote 612 ADSL Router,
you must have the following:

• An 

Internet Service Provider

(ISP) account.


ADSL Service

already installed at your location, with an

available ADSL wall jack.

• A 


(PC) with a CD-ROM drive, Ethernet connectivity

and TCP/IP software. (Note: TCP/IP is automatically included
with Windows 2000, ME, 98, 95, and NT.)

• A 

Web Browser

, such as Microsoft Internet Explorer (4.0 or

later) or Netscape Navigator (4.0 or later), installed on your



Before You



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DHCP: (Dynamic Host
Configuration Protocol)


Dynamic IP addressing is the
type of addressing scheme
most often used by Internet
Service Providers (ISPs), and
is also the type that is preva-
lent in many existing
corporate networks.

The OfficeConnect Remote
612 ADSL Router, which can
act as a DHCP server, is opti-
mized for use with dynamic,
rather than static, IP address-

For most users, it is most
likely that your computer or
computers are already set up
for dynamic IP addressing. By
default, the router assigns IP
addresses dynamically to
each attached computer.

Before you run the installation procedure, each computer must be
properly set up with TCP/IP and optimized for use with dynamic
IP addressing.

Checking for Dynamic or Static IP Addressing

• From the Start Menu, select Settings, and then Control Panel.

Windows 95, 98 or NT: 

Double-click the Network icon. From the Configuration tab of
the Network window, select TCP/IP for the Ethernet Network
Interface Card (NIC) that will be associated with your router.

Windows NT

: Click the Protocols tab on the Network win-

dow, and then select TCP/IP. Click Properties. Click the IP
Address tab on the TCP/IP Properties window.

Windows 2000: 

Double-click the Network and Dial-up Connections icon, then
double-click the Local Area Connection icon. Click Properties
on the Local Area Connection Status window and then select
Internet Protocol (TCP/IP) from the list of components shown
on the General tab of the Local Area Connection Properties win-
dow. Click the General tab on the Internet Protocol (TCP/IP)
Properties window.

• If 

Obtain an IP address automatically

(Windows 95, 98, 2000) or

Obtain an IP address from a DHCP server

(Windows NT) is

selected, your computer has a dynamic IP address.

• If 

Specify an IP address

is selected, your computer has a static

IP address.

• Click Cancel to exit the window, and then click Cancel again on

the remaining windows until you get back to the Control Panel.

When positioning your OfficeConnect Remote 612 ADSL Router,
make sure of the following:

• Unit is out of direct sunlight and away from sources of heat.

• Cabling is away from power lines, fluorescent lighting fixtures,

and sources of electrical noise such as radios, transmitters, and

• Water or moisture cannot enter the case of the unit.

• Air flow around the unit and through the vents in the side and

back of the case is not restricted. A minimum of 1 in. (2.54 cm)
clearance is recommended.


the Router



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The following illustration (Fig. 1) shows the connector cabling
and the locations of the Reset button and the PC/Hub Switch for
the OfficeConnect Remote 612 ADSL Router:

As part of the installation procedure on the following pages, you
will perform the following steps: 

1. Connect the DSL cable. 

Connect the DSL cable to the ADSL wall jack and the other end
to the ADSL port of your OfficeConnect Remote 612 ADSL

2. Connect the power adapter.

Connect the cable from the power adapter to the Power inlet on
the rear panel of the unit. Connect the other end of the power
cord into a surge-protected electrical outlet. 

3. Connect the LAN cable.

Connect one end of the LAN cable to the Ethernet port of your
computer and the other end to the Ethernet port on the rear
panel of the OfficeConnect Remote 612 ADSL Router. If you are
connecting the Ethernet port to a PC, the PC/HUB switch should
be “in”, when you connect to a hub it should be “out”.



Reset Button

PC/Hub Switch


LAN Connection


DSL Connection




Figure 1


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3. Setup Summary

This screen relates a summary of the
installation settings you selected. If
you need to make changes, click Back
to step back through the previous
screens. Otherwise, click Next.

The necessary files are now being
copied to your PC. 

2. Choose installation location

The Setup Wizard prompts you to
select the folder location for the
installation. In most cases, the prede-
fined default location will work just
fine. Use the Browse button if you
want to change the default path for
the files that will be copied onto your
PC. When you are ready to proceed,
click Next.

Click Next again in the screen setting
up Program folder entries.

1. Select Activity

The first screen (Fig. 2) lets you select
the Installation procedure, run the
Diagnostics, or view the online User’s

The Installation procedure is selected
by default. Click Next, and click Next
again at the Welcome screen.

Insert the Installation CD into the CD-ROM drive of your com-
puter. The CD should display the screen shown below (Fig. 2).

If the CD does not autoplay, select Start>Run and type
d:\setup.exe  (where d: is the letter of your CD-ROM drive).



Figure 2

Figure 3

Figure 4


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4. Connect the DSL Cable

Connect the DSL cable to the ADSL
wall jack and the other end to the DSL
port of your OfficeConnect Remote
612 ADSL Router.

Click Next.

Figure 5

Figure 6

Figure 7


5. Connect the Power Adapter

Connect the cable from the power
adapter to the Power inlet on the rear
panel of the unit. Connect the other
end of the power cord into a surge-
protected electrical outlet.

Wait for the Alert light on the front of
the Router to stop flashing, then click

6. Connect the Ethernet cable

Connect one end of the Ethernet cable
to the Ethernet port of your computer
and the other end to the Ethernet port
on the rear panel of the OfficeConnect
Remote 612 ADSL Router. As you are
connecting the Ethernet port to a PC,
the PC/HUB switch should be “in”.

Click Next.


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10. Verifying the Connection

After the computer has rebooted, you
will be presented with the screen
shown in Figure 9. Click Next to start
the verification process for your
Router. This ensures that your PC can
communicate properly with your
Router. If there is an error, follow the
on-screen prompts to fix the problem.

When the PC has successfully commu-
nicated with your Router, click on
Next to proceed.

11. Initial Logon

On your first connection with the Router, you
will be prompted to enter a User Name. At
the screen shown in Figure 10a, enter 


as the User Name, and leave the Password box
blank. Click OK. 

At the next screen shown in Figure 10b, enter
a password twice, and click Modify Settings. 

Your Router is now password
protected. You will need this
login information to make any
configuration changes to the


Figure 10b

9. Restart your computer.

Remove all CDs and disks from their
drives and click Finish. When the sys-
tem has restarted, the installation will

Figure 8

Figure 9

Figure 10a



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The system will launch your browser
and take you through a couple of con-
figuration screens, shown in Figure
11a and 11b, to set up your Internet
connection information.

Your ISP will provide you with the
information necessary to complete the
Internet Connection screen.

When you see the screen shown in
Figure 11b, showing that both the
ADSL Line and the Internet
Connection are Up, you are ready to
use the Router for Internet Access. 

If you need to connect additional
users, proceed to the next section,
Connecting multiple Users.

After the initial setup of the unit, you
can access Router Diagnostics,
Uninstall, the User’s Guide and the
User Manager from the Program
Menu, as shown in Figure 12 (your
system may look slightly different).
The Uninstall option lets you remove
all files from your computer. 

the Router

Figure 12

Figure 11a

Figure 11b


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Restarting the OfficeConnect Remote 612 ADSL Router:

To restart the OfficeConnect Remote 612, use the Restart/Restore
Section in the Advanced Menu in the User Manager.

Restoring Factory Default Settings:

To reset the Router to the factory default settings, disconnect the
Ethernet cable and then press and hold the Reset button, shown
in Figure 1. While holding in the Reset button, unplug the power
from the back of the Router and then plug it back in. Hold the
Reset button in for approximately 15 seconds (the Alert light on
the front of the Router should be green). Alternately, you can use
the Restart/Restore Section in the Advanced Menu in the User

Connecting an additional hub:

After you have finished the configuration of your OfficeConnect
Remote 612, you can connect an Ethernet hub to add up to 40
users, which is the maximum supported by the OfficeConnect
Remote 612.

An example of an eight-user connection is shown below (Fig 13),
using a 3Com OfficeConnect Ethernet Hub 8.

1. Verify network configuration.

Check with your network administrator that the built-in DHCP
server will not cause conflicts on the network. 

2. Connect the LAN cable.

Connect one end of the LAN cable to
a port of the ethernet hub and the
other end to the Ethernet port on the
rear panel of the Router.

3. Uplink port configuration

Set the PC/HUB switch to “Out” when
you are connecting a hub. Check the
documentation of the hub you are
using for the configuration of the
uplink port on the hub, if the hub has


Restart and

OfficeConnect Remote 612
ADSL Router

Ethernet Hub 8

Ethernet cable

10-18 V


0• 8A M



     8             7           6              5            4             3            2            1       

Figure 13


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LAN LED is Off

The Ethernet cable may not be connected or be damaged.

Make sure that the Ethernet cable is properly plugged in, or
replace it with another Ethernet cable.

PC/HUB switch is not set correctly.

The switch should be “in” if the Router is connected to a PC;
and it should be “out” if the Router is connected to a hub.

Verification and IP Address Problems

Getting a bad subnet address error.

The Router normally attempts to dynamically assign IP address-
es. Turn your static IP address off on your PC, then use the User
Manager to tell the Router that you will be using static IP
addresses. Then turn static IP addressing back on.

Getting a Verification Error.

Click Next on the error screen. You will be prompted to check
the most likely causes for the error. At any point in this process,
you can click on Retry to attempt to verify the Router again. If
you click on Done, you will exit the Install program.

ADSL LED is Blinking Orange

The ADSL cable is not connected or has been damaged.

Ensure that the ADSL cable is fully plugged in, or replace it with
another telephone cable. Otherwise, contact your ISP.

The ADSL Link is Not Stable

Wiring inside the house may be causing interference.

Make sure that any filter or splitter that you received from your
ISP is installed properly.

There is another DSL device plugged into the same phone line.

Only one DSL device can establish a DSL link at a time. Even if
the other device is powered off, it may cause interference.
Disconnect all other DSL devices. 

LCP Retransmission or PPPoE Timeout

Using the User Manager, make sure you have entered the proper
VCI/VPI values from your ISP. Otherwise, contact your ISP.

Authentication Failed

The Internet Connection username and password are incorrect.
Use the User Manager to check and correct these settings.

Signal loss due to long line length, or errors such as Network Layer
Failure, Local Side Terminated, Remote Side Terminated, or PPPoE

For any of these error conditions, contact your ISP.




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Why can’t I browse the Internet from my computer?

There are many possible reasons why this could happen. Follow
the steps below to try and identify what may be causing the

1) Check the LEDs on the front of the Router. The Power, LAN

and ADSL LEDs should be green (and may be flashing). When
all the LEDs indicate a good connection, try to browse the
Internet again. If you still cannot connect to the Internet, go to
#2 below.

2) Make sure the PC is communicating with the Router. Go to

your Start menu (see Fig. 12 on page 7) and select the
Diagnostics option. The Diagnostics program will give you
information that shows the status of your connection(s). When
the Diagnostics program brings up a browser window, go to #3
below. If you did not run the Installation CD on this PC, you
can run the Diagnostics program directly from the Installation
CD; simply click on Diagnostics on the first screen.

3) Make sure the Internet Connection is up. On the Diagnostics

screen, you will see an entry for Internet Connection. If the
Diagnostics screen shows that the Internet Connection is down,
refer to the Troubleshooting section on page 9 to determine
your next course of action. If the Diagnostics screen shows that
the Internet Connection is up, try to browse the Internet again.
If it still fails, contact your ISP.

Which cable is which?

The cable that looks like a normal telephone line is your ADSL
cable. The slightly thicker cable with larger connectors is your
LAN (Ethernet) cable.

How do I uninstall?

Go to your Start menu (see Fig. 12) and select the Uninstall
option. The program will remove all programs and software
installed when you ran the Install CD.

Where is the User’s Guide?

If you have run the Installation CD, the User’s Guide has been
installed on your PC and can be viewed by accessing your Start
Menu (see. Fig 12).

If you haven’t yet run the Installation program, you can review
the User’s Guide directly from the CD. Simply insert the Install
CD into the PC and select the User Guide option from the
launcher screen.




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The LED Indicators on the front panel of the OfficeConnect
Remote 612 ADSL Router (Fig. 14) provide the following

Front Panel



Power not being supplied to the unit.


Remains lit as long as power is supplied to the unit.



The Router is operating properly.

Orange (blinking)

During the booting up process, the Router is checking for the download of new 
software. This lasts for about 4 seconds.

Green (blinking slowly)

While the Router is initializing. This lasts for 30 to 40 seconds after booting.

Green (blinking rapidly)

The reset button is being held in and the Router has just been powered on. This lets 
you know that the Router has recognized the Reset request. It lasts for about 4 seconds.


An unexpected error has occurred, but it does not affect the operation of the Router.


A non-recoverable error has occurred. If this happens, the Router will automatically 
reboot. If the error persists, contact your Internet Service Provider. 



No Ethernet signal has been detected.


A PC or Hub is properly connected to the Ethernet port.

Green (blinking)

A proper connection exists and data is being transmitted.



DSL connection not established.

Orange (blinking) 

A connection is being established. The Router is attempting to synchronize with the 
DSL service provider's equipment.


DSL connection established.

Green (blinking)

A proper connection exists and data is being transmitted.

Figure 14


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Information contained in this document is correct at time of
publication. The following services are available 24 hours a day, 7
days a week. For the most up–to–date information, 3Com recom-
mends that you access the 3Com Corporation World Wide Web

World Wide Web Site


This service provides access to online support information such
as technical documentation and software library, as well as sup-
port options ranging from technical education to maintenance
and professional services.

Support from Your Network Supplier

If additional assistance is required, contact your network sup-
plier. Many suppliers are authorized 3Com service partners who
are qualified to provide a variety of services, including network
planning, installation, hardware maintenance, application train-
ing, and support services.

When you contact your network supplier for assistance, have the
following information ready:

• Product model name, part number, and serial number

• A list of system hardware and software, including revision levels

• Diagnostic error messages

• Details about recent configuration changes, if applicable

If you are unable to contact your network supplier, see the
following section on how to contact 3Com. 

Support from 3Com

If you are unable to obtain assistance from the 3Com online
technical resources or from your network supplier, 3Com offers
technical telephone support services. To find out more about
your support options, please call the 3Com technical telephone
support phone number at the location nearest you. Please refer to
the table on page 13.

When you contact 3Com for assistance, have the following infor-
mation ready:

• Product model name, part number, and serial number

• A list of system hardware and software, including revision levels

• Diagnostic error messages

• Details about recent configuration changes, if applicable




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Returning Products for Repair

Before you send a product directly to 3Com for repair, you must
first obtain a Return Materials Authorization (RMA) number.
Products sent to 3Com without RMA numbers will be returned to
the sender unopened, at the sender’s expense.

To obtain an RMA number, please call the local number for your
region, listed below.

Asia Pacific Rim



1 800 678 515

Hong Kong 

800 933 486


000 800 650 1111

+61 2 9937 5085


001 800 61 009


03 5783 1270


1 800 801 777

New Zealand

0 800 446 398


+61 2 9937 5085


1 235 61 266 2602

P. R. of China

00 800 0638 3266 

10 800 61 00137

021 6350 1590


800 6161 463

South Korea 

00798 611 2230

02 3455 6455

Taiwan, R.O.C

0080 611 261


001 800 611 2000

Middle East, Africa 


All locations 

971 4 807 4555

North America 


North America

1 800 net 3Com 
(1 800 638 3266)

Europe                                       http://www.3com.com/europe


07110 900116  


32 (0) 70 233 545 (Flemish)

32 (0) 70 233 546 (French)


45 (0) 35 44 5531


358 (0) 98170015


33 (0) 803 070693


49 (0) 180 567 1548


49 (0) 180 567 1548


971 4 807 4555


147 809 903


352 342 080 8318


0900 20 25 857


47 (0) 23 50 0097


49 (0) 180 567 1548 


351 (21) 4154034


902 117 964


46 (0) 851 992 0305


0 848 840200

United Kingdom 

0 870 8444546 

Latin America



0 810 444 3266


0 900 133 266


9 800 11 3266

Mexico City 

0 1 800 849 2273

Other Latin America 

AT&T Direct + 800 998 2112


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3Com Corporation, 
Corporate Headquarters, 
5400 Bayfront Plaza, Santa Clara, 
CA 95052-8145, USA.

To learn more about 3Com solutions,
visit www.3com.com. 3Com Corporation
is publicly traded on Nasdaq under the
symbol COMS.

All specifications are subject to change 
without notice.

Printed in Ireland.

Part No. 10046406 Rev. AB 9/01