Zoom Ethernet User manual

Zoom
Cable Modem
USER’S MANUAL
Ethernet/USB External

Contents
CHAPTER 1: GETTING STARTED .............................................. 3
INFORMATION FOR CABLE SERVICE PROVIDER................................ 3
PACKAGE CONTENTS................................................................ 4
YOU WILL ALSO NEED ............................................................. 4
CHAPTER 2: INSTALLING YOUR CABLE MODEM ......................... 5
CONNECTING YOUR CABLE MODEM TO A COMPUTER’S
ETHERNET PORT .................................................................... 5
CONNECTING YOUR CABLE MODEM TO A ROUTER ........................... 7
INSTALLING THE SOFTWARE—USB USERS ONLY ............................ 9
INSTALLING THE HARDWARE—USB USERS ONLY ..........................10
COMPLETING THE INSTALLATION ...............................................12
CHAPTER 3: USING YOUR CABLE MODEM............................... 13
TO CONNECT TO THE INTERNET ................................................13
IF YOU UNPLUG YOUR CABLE MODEM OR LOSE POWER ...................14
IF YOU NEED HELP ................................................................14
APPENDIX A: TROUBLESHOOTING ......................................... 15
APPENDIX B: CONFIGURING YOUR TCP/IP
NETWORK SETTINGS........................................................... 19
APPENDIX C: HOW TO LOCATE YOUR ETHERNET
MAC ADDRESS .................................................................. 24
APPENDIX D: CONFIGURING YOUR WEB BROWSER.................. 26
APPENDIX E: REMOVING THE CABLE MODEM SOFTWARE (USB
OPTION ONLY) ................................................................... 30
APPENDIX F: REGULATORY INFORMATION ............................. 31

Chapter 1: Getting Started 3
1
Getting Started
Before you install your cable modem, you must have cable
modem service with a cable company.
Information for Cable Service
Provider
You must provide your cable service provider with the information
summarized below, which is located on the bottom of your
modem.
Product Name: Zoom Cable Modem
Model: __________
Serial No: ___________________________
MAC Address: _______________________
Some cable service providers will also ask for the MAC address of
the computer or router that you plan to connect to the cable
modem. Most routers and some computers have a label with this
information. Appendix C also discusses how to find the MAC
address of some computers.

4 Zoom Cable Modem User’s Manual
Package Contents
Your package contains the following items:
•Cable modem
•Ethernet cable
•USB cable
•Power cube
•Software CD-ROM.
The CD contains the installation software, documentation,
warranty, and Customer Support information.
If anything is missing or damaged, contact Zoom Customer
Support or whoever sold you the modem.
You Will Also Need
•Any one of the following to connect to the modem:
!A Windows, Macintosh, or Linux computer with an
Ethernet port.
!A Windows computer (Windows 98 or higher) with a USB
port. (Only use the USB port if you cannot use an
Ethernet port.)
!A wired or wireless router with an Ethernet port.
•A power outlet for plugging in the cable modem.
•Cable modem service provided by your cable company. The
service must be compatible with your cable modem, which
supports DOCSIS 1.0, 1.1, and 2.0.
•A way to connect your cable modem to the cable company’s
service. Your home may already have a cable with a connector
that can attach directly to the cable modem. You may instead
have a wall jack; and in that case, you will need a 75-ohm
coaxial cable of the right length to connect from the wall jack
to the cable modem.

Chapter 2: Installing Your Cable Modem 5
2
Installing Your Cable Modem
This chapter describes how to install your cable modem.
•To connect the cable modem to a router, skip to page 7.
•If you have to connect the cable modem to your Windows
computer’s USB port, go to Installing the Software
Installing the SoftwareInstalling the Software
Installing the Software on
page 9.
•Most users will connect the cable modem to a computer’s
Ethernet port. To do that, follow the steps below.
Connecting Your Cable Modem
to a Computer’s Ethernet Port
1
11
1Shut down the computer that you are going to connect to the
cable modem.
2
22
2Plug one end of the Ethernet cable into the modem’s LAN
jack and plug the other end into your computer’s Ethernet
jack.
Tip:
The modem has a fold-out base, so you can stand it upright or
lie it flat, depending on your preference.

6 Zoom Cable Modem User’s Manual
3
33
3Connect the modem to the cable outlet.
!If you have a wall outlet cable jack: Connect one end of the
coaxial cable to the modem’s CABLE connector and connect
the other end to the wall jack.
!If you do not have a wall jack: You should have coaxial
cable entering your house close to where you want to
locate your cable modem. Connect the end of this cable to
the modem’s CABLE connector.
4
44
4Plug the included power cube into a power strip or wall outlet
and then into the modem’s POWER jack. The modem
performs an automated power-up process and registers with
the cable system. When the process is complete, all the front
panel lights—except for the LINK light—will stay on steady.
(The table on page 15 lists the lights and their modes.)
Note:
It may take several minutes for the modem to register with the
cable system. If the modem’s front panel ON LINE, US, and
DS lights do not stay on steady after a reasonable amount of
time, go to Troubleshooting Tips on page 15.
5
55
5Turn on your computer. The modem’s LINK light comes on.
6
66
6At this point, the equipment at your cable company will
communicate with your modem and computer to finalize the
installation. You should follow any directions that your cable
provider has given to you. In some cases, everything will
happen automatically. In other cases, your cable company may
instruct you to phone back with your cable modem’s MAC
address (see page 3) after you complete the hardware
installation. The cable company may also request billing
information.
Congratulations! You have installed the hardware. Continue with
the section Completing the Installation on page 12.

Chapter 2: Installing Your Cable Modem 7
Connecting Your Cable Modem
to a Router
1
11
1The router should not be plugged in or powered up. If it is,
unplug it.
2
22
2Plug one end of the Ethernet cable into the modem’s LAN
jack and the other end into the router’s WAN Ethernet jack,
typically labeled WAN or Internet.
Tip:
The modem has a fold-out base, so you can stand it upright or
lie it flat, depending on your preference.
3
33
3Connect the modem to the cable outlet.
!If you have a wall outlet cable jack: Connect one end of
the coaxial cable to the modem’s CABLE connector and
connect the other end to the wall jack.
!If you do not have a wall jack: You should have coaxial
cable entering your house close to where you want to
locate your cable modem. Connect the end of this cable to
the modem’s CABLE connector.
4
44
4Plug the included power cube into a power strip or wall outlet
and then into the modem’s POWER jack. The modem
performs an automated power-up process and registers with
the cable system. When the process is complete, all the front
panel lights—except for the LINK light—will stay on steady.
(The table on page 15 lists the lights and their modes.)
Note:
It may take several minutes for the modem to register with the
cable system. If the modem’s front panel ON LINE, US, and
DS lights do not stay on steady after a reasonable amount of
time, go to Troubleshooting Tips on page 15.

8 Zoom Cable Modem User’s Manual
5
55
5Power-up the router. Wait for the router to complete its
power-up sequence. The modem’s LINK light comes on.
6
66
6You may need to restart some or all of the computers attached
to the router.
7
77
7At this point, the equipment at your cable company will
communicate with your modem to finalize the installation.
You should follow any directions that your cable provider has
given to you. In some cases, everything will happen
automatically. In other cases, your cable company may instruct
you to phone back with your cable modem’s MAC address (see
page 3) after you complete the hardware installation. The cable
company may also request billing information.
Congratulations! You have installed the hardware. Continue with
the section Completing the Installation on page 12.

Chapter 2: Installing Your Cable Modem 9
Installing the Software—USB
Users Only
Important!
This section is only for Windows computer users who need to use
the cable modem’s USB port.
Windows computer users who are using the USB option
MUST install the software BEFORE installing the hardware.
Note, however, that you must remove any existing USB modem
drivers on your Windows computer before beginning this software
installation. On the desktop, click the Start button, and then—
depending on your operating system—either click Control Panel,
or click Settings and then Control Panel. In the Control Panel,
double-click Add/Remove Programs. On the Add/Remove
Program Properties dialog box, select the USB modem you are
removing on the Install/Uninstall tab, click Remove, and then
click OK.
1
11
1Turn on the computer that you want to use to connect to the
Internet.
2
22
2Insert the supplied CD into the CD-ROM drive of your
computer. The CD should start automatically. (If the CD does
not start automatically, on the desktop, click the Start button,
click Run, and then type D:\setup.exe, where Dis the letter
of your CD-ROM drive.)
3
33
3Click Installation Wizard.
4
44
4Click Next when prompted.
5
55
5When the installation is complete, click Finish, then click
Exit.

10 Zoom Cable Modem User’s Manual
6
66
6Close any applications that may be open, then remove the CD
from the CD-ROM drive.
7
77
7Shut down the computer.
Congratulations! You have installed the software. Continue with
the next section, Installing the Hardware—USB Users Only.
Installing the Hardware—USB
Users Only
1
11
1Shut down the computer that you are going to connect to the
cable modem.
2
22
2Plug one end of the USB cable into the modem’s USB port
and the other end into your computer’s USB port.
Tip:
The modem has a fold-out base, so you can stand it upright or
lie it flat, depending on your preference.
3
33
3Connect the modem to the cable outlet.
!If you have a wall outlet cable jack: Connect one end of
the coaxial cable to the modem’s CABLE connector and
connect the other end to the wall jack.
!If you do not have a wall jack: You should have coaxial
cable entering your house close to where you want to
locate your cable modem. Connect the end of this cable to
the modem’s CABLE connector.

Chapter 2: Installing Your Cable Modem 11
4
44
4Plug the included power cube into a power strip or wall outlet
and then into the modem’s POWER jack. The modem
performs an automated power-up process and registers with
the cable system. When the process is complete, all the front
panel lights will stay on steady. (The table on page 15 lists the
lights and their modes.)
Note:
It may take several minutes for the modem to register with the
cable system. If the modem’s front panel ON LINE, US, and
DS lights do not stay on steady after a reasonable amount of
time, go to Troubleshooting Tips on page 15.
5
55
5Turn on your computer. You may see a Found New
Hardware box indicating the progression of the installation. If
you are prompted to restart your computer, please do so. You
will be prompted to register your product with Zoom; if you
prefer to register later, you can do so from your Windows
desktop: Click the Start button, point to Programs, then
point to Zoom Cable Modem, select Product Registration,
and follow the prompts.
6
66
6At this point, the equipment at your cable company will
communicate with your modem and computer to finalize the
installation. You should follow any directions that your cable
provider has given to you. In some cases, everything will
happen automatically. In other cases, your cable company may
instruct you to phone back with your cable modem’s MAC
address (see page 3) after you complete the hardware
installation. The cable company may also request billing
information.
Congratulations! You have installed the hardware. Continue with
the next section Completing the Installation.

12 Zoom Cable Modem User’s Manual
Completing the Installation
Please observe the following suggestions:
•Do not block the modem vents in any way. Failure to allow
proper air circulation can result in serious damage to the
modem. Place the modem so that there is one inch of free
space between its top and sides and any other device and the
wall.
•Do not place any items on top of the modem while it is
plugged in.
•Do not place the modem near a heating or air conditioning
duct, in direct sunlight, or anywhere susceptible to drastic
temperature changes.
For many users, the cable modem installation is complete. Please
refer to the bullet below to see if the following applies to you:
•If you connected the cable modem to a Macintosh or
Linux computer, your computer’s network settings need to
be configured. Go to page 19 for instructions.
Otherwise, continue with Chapter 3: Using Your Cable Modem.

Chapter 3: Using Your Cable Modem 13
3
Using Your Cable Modem
Now that you have installed your Zoom cable modem and it
has synchronized itself with the cable network, your cable
modem is ready to connect to the Internet.
To Connect to the Internet
To connect to the Internet, use your Web browser. If you are a
Windows user and cannot connect, your Web browser settings may
need adjustment. Your Web browser should be set to use a
network connection (this might be called a “Local Area Network”
or “broadband” connection). Refer to page 26 if you need help
doing this.
When you are done surfing the Web, close the browser. There is
no need to unplug your modem. Your modem will remain
connected with the cable system so that you can access the Internet
at any time by opening your Web browser. Some cable companies
request that you keep your modem on so that they can perform
periodic software maintenance. However, if you do unplug your
cable modem or if you lose power, you will have to wait while it
powers up and synchronizes with the cable company before you
can access the Internet.
You can use the modem’s Ethernet option and the USB option
simultaneously and provide Internet access to two computers if
your cable provider supplies two IP addresses. Some providers
offer this option for an extra fee. Consult your provider if you are
interested.

14 Zoom Cable Modem User’s Manual
If You Unplug Your Cable
Modem or Lose Power
If you power down your cable modem, or if power is lost for any
other reason, all communication between the modem and the cable
system will be terminated. When power is restored, the modem will
go through the full startup and synchronization process before you
can connect to the Internet.
If You Need Help
Zoom has many Technical Support services available to its
customers. You can access these services in a variety of ways:
•Windows users: Insert the CD and then click the Customer
Support link to view support information. There is also an
electronic copy of this manual on the CD under the
Documentation link.
•Macintosh and Linux users: Insert the CD and navigate to the
Mac_Linux folder to view documentation and support
information.
•Visit our Web site at www.zoom.com and select Technical
Support. From here, you can send email to our technical
support experts and/or do a smart search through our
intelligent database by using SmartFacts™.
•Call our support office in the United States at [phone]
or in the United Kingdom at 44 (0)1276 704440.
•Some retailers of Zoom products provide support or can
recommend a convenient support center.

Appendix A: Troubleshooting 15
Appendix A
Troubleshooting
This section provides tips to troubleshoot your cable modem.
By referring to these tips, you may be able to quickly find a
solution and avoid a call to Technical Support or your cable
service provider. You may also want to refer to the Frequently
Asked Questions (FAQs) located on the CD, or visit our Web
site.
Your Zoom cable modem has several lights on its front panel to
help you monitor the modem’s status.
Light Name Mode Status
POWER Solid Power is on.
DS
(downstream) Blinking
Solid
Modem is establishing a connection from
the Internet to the computer.
Connection from the computer to the
Internet is established.
US
(upstream) Blinking
Solid
Modem is establishing a connection from
the computer to the Internet.
Connection from the computer to the
Internet is established.
ON LINE Blinking
Solid
Modem is establishing a connection to
the cable provider.
Modem connection to the cable provider
is established.
LINK Blinking
Solid
Data is flowing between the computer
and the Internet.
Powered-up modem is connected to LAN
device (e.g., computer, router).

16 Zoom Cable Modem User’s Manual
Problem: I cannot access my Internet service or send or
receive email.
Solution: All the modem’s front panel lights—LINK, ON
LINE, US (upstream), DS (downstream), and
POWER—must be solidly lit before your modem will
work. If they are not:
!Check all modem connections.
!Check to see that your cable TV is working.
!Press the recessed RESET button on the back of
the cable modem by using a paperclip. Press the
button for a few seconds, release it, then wait for
all the modem’s front panel lights to stay on
steady. (Alternately, you can unplug your cable
modem and then plug it back in.)
!Restart your computer.
!Check with your cable service provider to make
sure that high speed access is available and
running.
!In rare instances, the cable signal may be weak or
noisy. If possible, try the modem at one of the
ports on the first splitter after the cable enters the
premises.
!Ethernet option users: Check that your Ethernet
is functioning correctly. Refer to its
documentation if necessary.
!Check that your TCP/IP settings are configured
correctly.
—Macintosh users, go to page 19.
—Linux users, go to page 21.
—Windows users, go to page 22.
!Check that your Web browser is configured
correctly. It should be set to use a network
connection (this might be called a “Local Area
Network” or “broadband” connection). Refer to
page 26 if you do not know how to check this.

Appendix A: Troubleshooting 17
Problem: I have connected a router to the cable modem but
now cannot access the Internet or send or receive
email.
Solution: If the cable modem worked fine when connected to
directly your computer, most likely the problem is
caused by the router’s configuration or installation.
First try shutting down and restarting each computer
connected to the router. Allow the modem time to
resynchronize with the cable system.
If that does not solve the problem, your cable service
provider may be using the cable modem’s MAC
address and the MAC address of the device that the
cable modem is plugged into. If you add a router and
connect the cable modem directly to the router’s
WAN port, you are changing the MAC address that is
being used and sent to the cable service provider. You
may need to contact your cable service provider and
give them the MAC address of the router’s WAN
port. The provider will then add this MAC address to
their approved list, and you will be able to access the
provider’s cable network using any computer
connected to that router. You may also need to check
that the DHCP client on the router’s WAN port is
enabled. If you need help, look in your router manual
or contact your router manufacturer.
Problem: When I power-up my computer, I receive the on-
screen message “Unknown Network Adapter.”
Solution: This problem can result if the Ethernet or USB
adapter hardware is physically present and recognized
by Plug -and-Play, but the proper drivers were not
installed; Windows may have added the device to the
Other Devices list under Device Manager. Uninstall
your cable modem (see page 30) and then reinstall it.

18 Zoom Cable Modem User’s Manual
Problem: I receive the on-screen message “Configure
TCP/IP Failure Error.”
Solution: First make sure that your Ethernet cable is plugged in,
then unplug your modem from the electrical outlet for
several seconds, and then plug it back in. Be aware it
will take time for the modem to re-register itself and
synchronize itself with the cable system.
Problem: I receive the on-screen message “Undetected
Network Adapter.”
Solution: The Ethernet or USB adapter was not installed
correctly. Uninstall your cable modem (see page 30)
and then reinstall it.
Problem: I receive the on-screen message “Missing
Internet Protocol.”
Solution: Your TCP/IP network settings may not be correct.
!Macintosh users, go to page 19.
!Linux users, go to page 21.
!Windows users, go to page 22.

Appendix B: Configuring Your TCP/IP Network Settings 19
Appendix B
Configuring Your TCP/IP
Network Settings
If you are using a Macintosh or Linux computer, you must
mustmust
must
ensure that your computer’s TCP/IP network settings are
configured properly. Otherwise, you will not be able to connect
to the Internet.
Note:
If you are using a Windows computer, you do not have to
configure the TCP/IP settings. This is because your Windows
computer will automatically configure them for you. Windows
users who are troubleshooting the cable modem may want to verify
the TCP/IP settings.
Depending on your operating system, follow the steps in the
appropriate section to ensure your TCP/IP settings are correct.
•If you are using Linux, go to page 21.
•If you are using Windows, go to page 22.
•If you are using Macintosh, continue below.
Macintosh TCP/IP Settings
Your Macintosh computer’s network settings depend on your Mac
OS. For OS X, follow the instructions below. Otherwise, go to
page 20.
Mac OS X
1
11
1From the Dock, choose System Preferences and then
Network to display the Network pane. (For OS X 3, you also
have to click the Configure button.)
2
22
2Ensure that Automatic is selected from the Location list box.

20 Zoom Cable Modem User’s Manual
3
33
3Under the Show drop-down tab (OS X 10.3.x) or the
Configure drop-down tab (OS X 10.2.x), choose Built-in
Ethernet.
4
44
4Under the TCP/IP tab, make sure that Using DHCP is
highlighted in the Configure: list box. Do not enter anything
into the DHCP Client ID field.
5
55
5Click Apply Now (or Save if prompted) and close the
Network pane.
Congratulations! This completes the installation of your modem.
Go to Chapter 3: Using Your Cable Modem on page 13.
Mac OS 7.6.1 - 9.2.2
1
11
1From the Apple menu, choose Control Panels and then
TCP/IP to display the TCP/IP Window.
2
22
2Under Connect via:, select Ethernet built-in.
3
33
3Under Configure:, select Using DHCP Server. Do not enter
anything in the DHCP Client ID field.