Scientific Atlanta Webstar Dpc2100 Users Manual User's Guide And EPC2100 Cable Modem

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2015-01-21

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WebSTAR™ Model DPC 2100™ and EPC2100™Cable Modem User’s Guide

WebSTAR™ Model DPC 2100™ and EPC2100™

Cable Modem User’s Guide

Introduction

Welcome to the exciting world of high-speed Internet access. Your new WebSTAR™ Cable Modem offers high-

end performance and unsurpassed reliability. With your new WebSTAR Cable Modem, your Internet enjoyment

and business productivity will surely soar.

This guide provides procedures and recommendations for placing, installing, configuring, operating, and

troubleshooting your WebSTAR Cable Modem.

Benefits and Features

Your WebSTAR Cable Modem offers the following outstanding benefits and

features:

• Provides a high-speed broadband Internet connection that energizes your

online experience, and makes downloading and sharing files and photos with

your family and friends hassle free

• Features Plug and Play operation for easy set up and installation

• Includes both USB and Ethernet connections

• Allows vertical or horizontal placement

• Allows automatic software upgrades by your cable service provider

• Ensures interoperability with most cable service providers by complying with

Data Over Cable System Interface Specifications (DOCSIS®)

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

In This Guide

Important Rules for Safe Operation ............................................................................................................................. 3

What’s In the Carton? .................................................................................................................................................. 6

Front Panel Description ............................................................................................................................................... 7

Back Panel Description................................................................................................................................................ 8

Where Is the Best Location for My Cable Modem? ..................................................................................................... 9

What are the System Requirements for Internet Service? .......................................................................................... 9

How Do I Set Up My High-Speed Internet Access Account? ...................................................................................... 10

How Do I Connect My Devices to Use the Internet? ................................................................................................... 11

How Do I Configure TCP/IP Protocol?......................................................................................................................... 13

How Do I Install USB Drivers? ..................................................................................................................................... 16

Having Difficulty? ......................................................................................................................................................... 18

Tips for Improved Performance ................................................................................................................................... 20

How Do I Renew the IP Address on My PC? .............................................................................................................. 21

Front Panel Status Indicator Functions........................................................................................................................ 22

Notices ......................................................................................................................................................................... 24

FCC Compliance.......................................................................................................................................................... 25

For Information............................................................................................................................................................. 26

Important Rules for Safe Operation

Note to Installer

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS

Note to CATV System Installer

This reminder is provided to call the CATV

system installer’s attention to Article 820-40

of the NEC (Section 54, Part I of the Canadian

Electrical Code), that provides guidelines for

proper grounding and, in particular,

specifies that the CATV cable ground shall

be connected to the grounding system of

the building, as close to the point of cable

entry as practical.

CAUTION: To reduce the risk of electric

shock, do not remove cover (or back).

No user-serviceable parts inside. Refer

servicing to qualified service personnel.

This symbol is intended to alert you of the

presence of important operating and

maintenance (servicing) instructions in the

literature accompanying this product.

This symbol is intended to alert you that

uninsulated voltage within this product may

have sufficient magnitude to cause electric shock.

Therefore, it is dangerous to make any kind of

contact with any inside part of this product.

WARNING

TO PREVENT FIRE OR ELECTRIC SHOCK,

DO NOT EXPOSE THIS UNIT TO RAIN OR

MOISTURE.

Read and Retain These Instructions

• Read all of the instructions before you operate this equipment. Give

particular attention to all safety precautions. Retain the instructions for future

reference.

• Comply with all warning and caution statements in the instructions. Observe

all warning and caution symbols that are affixed to this equipment.

• Comply with all instructions that accompany this equipment.

Cleaning the Equipment

Before cleaning this equipment, unplug it from the electrical outlet. Use a damp

cloth to clean this equipment. Do not use a liquid cleaner or an aerosol cleaner.

Do not use a magnetic/static cleaning device (dust remover) to clean this

equipment.

Placement

Place this equipment in a location that is close enough to an electrical outlet to

accommodate the length of the power cord. Place this equipment on a stable

surface. The surface must support the size and weight of this equipment. Place

this equipment either horizontally or vertically.

WARNING:

Avoid personal injury

and damage to this

equipment. An

unstable surface may

cause this equipment

to fall.

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

Accessories

Do not use accessories with this equipment unless recommended by your cable

service provider.

Ventilation

This equipment has openings for ventilation that protect it from overheating. To

ensure the reliability of this equipment, do not obstruct the openings.

• Do not place other equipment, lamps, books, or any other object on the top

of or beside this equipment.

• Do not place this equipment in any of the locations that follow:

−

−−

− On a bed, sofa, rug, or similar surface

−

−−

− Over a radiator or a heat register

• In an enclosure, such as a bookcase or equipment rack, unless the

installation provides proper ventilation

Overloading

Do not overload electrical outlets, extension cords, or integral convenience

receptacles, as this can result in a risk of fire or electric shock. For equipment

that requires battery power or other sources to operate, refer to the operating

instructions for that equipment.

Object and Liquid Entry

Never push objects of any kind into this product through openings as they may

touch dangerous voltage points or short out parts that could result in a fire or

electric shock. Do not expose this equipment to liquid or moisture. Do not place

this equipment on a wet surface. Do not spill liquids on or near this equipment.

Lightning and Power Surges

Plug your equipment into a surge protector in order to reduce the risk of damage

from lightning strikes and power surges. If you are unsure of the type of surge

protector to use, contact your cable service provider.

Servicing

Do not open the cover of this equipment. If you open the cover, your warranty will

be void. Refer all servicing to qualified personnel only. Contact your cable service

provider for instructions.

Important Rules for Safe Operation

Power Cord Protection

Arrange all power cords so that people cannot walk on the cords, place objects

on the cords, or place objects against the cords, which can damage the cords.

Pay particular attention to cords that are at plugs, at electrical outlets, and at the

places where the cords exit the equipment.

Power Sources

A label on the AC power adapter that is supplied with this equipment indicates

the correct power source for this equipment. Operate this equipment only from an

electrical outlet that has the voltage and frequency that the label indicates.

If you are unsure of the type of power supply to your residence, consult

Scientific-Atlanta, Inc., or your local power company.

Grounding

This equipment may be provided with a three-prong plug. Properly ground (earth)

this equipment by inserting the plug into a grounded electrical, three-socket outlet.

If you are unable to insert this plug fully into the outlet, contact an electrician to

replace your obsolete outlet.

Damage that Requires Service

For damage that requires service, unplug this equipment from the electrical outlet.

Contact your cable service provider when any of the following situations occur:

• There is damage to the power cord or plug

• Liquid enters the equipment

• A heavy object falls on the equipment

• There is exposure to rain or water

• Operation is not normal (the instructions describe the proper operation)

• If you drop this equipment, or damage the cabinet of this equipment

• If this equipment exhibits a distinct change in performance

Upon completion of any service or repairs to this equipment (cable modem), ask

the service technician to perform safety checks to determine that the equipment

is in proper operating condition.

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

What’s In the Carton?

When you receive your cable modem, you should check the equipment and accessories to verify that each item is

in the carton and that each item is undamaged. The carton contains the following items, except as noted:

One Model DPC2100 or EPC2100

Cable Modem

One Ethernet cable (CAT5/RJ-45)

One power adapter with power

cord

One USB cable (not included with

all models)

One CD-ROM containing the

user’s guide and the USB drivers

If any of these items are missing or damaged, please contact SciCare™

Broadband Services at 1-800-722-2009 for assistance.

You will need an optional cable signal splitter and additional standard RF coaxial

cable if you want to connect a VCR, a Digital Home Communications Terminal

(DHCT) or a set-top converter, or a TV to the same cable connection as your

cable modem.

Front Panel Description

The front panel of your cable modem provides status lights that indicate how well and at what state your cable

modem is operating. After the cable modem is successfully registered on the network, the POWER and CABLE

status indicators illuminate continuously to show that the cable modem is active and fully operational. See Front

Panel Status Indicator Functions, later in this guide, for more information on front panel status indicator

functions.

1 POWER—Illuminates solid green to indicate that power is

being applied to the cable modem

2 RECEIVE DATA—Blinks to indicate that the cable modem is

receiving data from the cable network

3 SEND DATA— Blinks to indicate that the cable modem is

sending data to the cable network

4 CABLE—Illuminates solid green when the cable modem is

registered on the network and fully operational. This indicator

blinks to indicate one of the following conditions:

• The cable modem is booting up and not ready for data

• The cable modem is scanning the network and attempting

to register

• The cable modem has lost registration on the network and

will continue blinking until it registers again

5 PC—Illuminates solid green to indicate that an Ethernet/USB

carrier is present and blinks to indicate that Ethernet/USB

data is being transferred between the PC and the cable

modem

After the cable modem is successfully registered on the

network, the POWER (LED 1) and CABLE (LED 4) indicators

illuminate continuously to indicate that the cable modem is

online and fully operational.

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

Back Panel Description

The following illustration describes the back panel components of the DPC2100 and EPC2100 cable modems.

1 12 VDC—Connects the cable modem to the DC output of the

AC power adapter that is provided with your cable modem.

Only use the AC power adapter and power cord that is

provided with your cable modem

2 RST—Reset-to-Default button (Factory Reset)

This button is for maintenance purposes only.

Do not use unless told to do so by your service provider.

3 MAC Address Label—Displays the MAC address of the cable

modem

4 ETHERNET—RJ-45 Ethernet port connects to the Ethernet

port on your PC

5 USB—12 Mbps USB port connects to the USB port on your PC

6 CABLE—F-Connector connects to an active cable signal from

your cable service provider

CAUTION:

Avoid damage to your equipment. Only use the AC

power adapter and power cord that is provided with

your cable modem.

Where is the Best Location for My Cable Modem?

Where Is the Best Location for My Cable Modem?

The ideal location for your cable modem is where it has access to outlets and other devices. Think about the

layout of your home or office, and consult with your cable service provider to select the best location for your

cable modem.

Consider these recommendations:

• Position your PC and cable modem so that they are located near an AC

power outlet.

• Position your PC and cable modem so that they are located near an existing

cable input connection to eliminate the need for an additional cable outlet.

There should be plenty of room to guide the cables away from the modem

and the PC without straining or crimping them.

• Airflow around the cable modem should not be restricted.

• Choose a location that protects the cable modem from accidental

disturbance or harm.

• Read this user’s guide thoroughly before you decide where to place your

cable modem.

What Are the System Requirements for Internet Service?

To ensure that your cable modem operates efficiently for high-speed Internet service, verify that all of the Internet

devices on your system meet or exceed the following minimum hardware and software requirements.

You will also need an active cable input line and an Internet connection.

Minimum System Requirements for PCs

• A PC with a Pentium MMX 133 processor or greater

• 32 MB of RAM

• Web browsing software (Netscape or Internet Explorer)

• CD-ROM drive

Minimum System Requirements for Macintosh

• MAC OS 7.5

• 32 MB of RAM

System Requirements for an Ethernet Connection

• A PC with Microsoft Windows 95 operating system (or later) with TCP/IP

protocol installed, or an Apple Macintosh computer with TCP/IP protocol

installed

• An active 10/100BaseT Ethernet network interface card (NIC) installed in your

System Requirements for a USB Connection

• A PC with a Microsoft Windows 98SE, ME, 2000, or XP operating system

• A master USB port installed in your PC

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

How Do I Set Up My High-Speed Internet Access Account?

Before you can use your cable modem, you need to have a high-speed Internet access account. If you do not

have a high-speed Internet access account, you will need to set up an account with your local cable service

provider. Choose one of the following two options.

I Do Not Have a High-Speed Internet Access Account

If you do not have a high-speed Internet access account, your cable service

provider will set up your high-speed Internet access account and become your

Internet Service Provider (ISP). Internet access enables you to send and receive

e-mail, access the World Wide Web, and receive other Internet services. When

you contact your cable service provider, they will ask you for the serial number

and the Media Access Control (MAC) address of the cable modem.

These numbers appear on a label located on the side of the gateway cable

modem. The serial number consists of a series of alphanumeric characters

preceded by S/N. The MAC address consists of a series of alphanumeric

characters preceded by MAC. See the following illustration of a sample label.

Write down these numbers in the space provided here.

Serial Number _______________________

MAC Address ________________________

The MAC address also appears on a label on the back panel of the cable

modem.

I Already Have an Existing High-Speed Internet Access Account

If you have an existing high-speed Internet access account, you must give your

cable service provider the serial number and the MAC address of the cable

modem. Refer to the serial number and MAC address information listed

previously in this section.

You may be able to continue to use your existing e-mail account with your

cable modem. Contact your cable service provider for more information.

How Do I Connect My Devices to Use the Internet?

You can use your cable modem to access the Internet, and you can share that Internet connection with other

Internet devices in your home or office. Sharing one connection among many devices is called networking.

Connecting and Installing Internet Devices

You must connect and install your cable modem to access the Internet.

Professional installation may be available. Contact your local cable service

provider for further assistance.

To connect devices

The following diagram illustrates one of the various Internet connection options

that are available to you.

12 VDC RST ETHERNET CABLEUSB

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

To install the cable modem

1. Power down your PC and unplug it from the power source.

2. Connect your PC to either the ETHERNET port or the USB port using the

appropriate data cable. Do not connect your PC to both the Ethernet and

USB ports at the same time. You can connect two separate PCs to the

gateway cable modem at the same time by connecting one PC to the

Ethernet port and one PC to the USB port.

3. Connect the active RF coaxial cable to the CABLE connector. Use an

optional cable signal splitter to add a TV, a DHCT or set-top converter, or

a VCR.

4. Insert the AC power adapter cord into the DC POWER connector on the

back of the gateway cable modem, and then plug the power adapter into

an AC power source.

5. Plug in and power on your networked devices including your PC. The

gateway cable modem will then begin an automatic search to locate and

sign on to the broadband data network. This process may take up to 5

minutes. The modem will be ready for use when the CABLE indicator on

the front panel stops blinking and illuminates continuously.

6. The next step in setting up your gateway cable modem is to configure

your Internet devices for Internet access. Choose one of the following

options:

• If you want to use Ethernet connections, you must configure the

TCP/IP protocol. To configure the TCP/IP protocol, go to How Do I

Configure TCP/IP Protocol, next in this guide.

• If you want to use USB connections, you must install the USB drivers.

To install the USB Drivers for USB go to How Do I Install USB

Drivers, later in this guide.

WARNING:

To avoid personal

injury or damage to

your equipment,

follow these steps in

the exact order shown.

How Do I Configure TCP/IP Protocol

How Do I Configure TCP/IP Protocol?

To configure TCP/IP protocol, you need to have an Ethernet Network Interface Card (NIC) with TCP/IP

communications protocol installed on your system. TCP/IP is a communications protocol used to access the

Internet. This section contains instructions for configuring TCP/IP on your Internet devices to operate with the

cable modem in Microsoft Windows or Macintosh environments.

Configuring TCP/IP on Your Internet Devices

TCP/IP protocol in a Microsoft Windows environment is different for each

Microsoft Windows version. Follow the appropriate instructions in this section for

your operating system.

To configure Windows 95, 98, 98SE, or ME systems

1. Click Start, select Settings, and choose Control Panel.

2. Double-click the Network icon in the Control Panel window.

3. Read the list of installed network components under the Configuration

tab to verify that your PC contains the TCP/IP protocol.

4. Is TCP/IP protocol listed in the installed network components list?

• If yes, go to step 7.

• If no, click Add, click Protocol, click Add, and then go to step 5.

5. Click Microsoft in the Manufacturers list.

6. Click TCP/IP in the Network Protocols list, and then click OK.

7. Click the TCP/IP Ethernet Adapter protocol, and then choose

Properties.

8. Click the IP Address tab, and then select Obtain an IP address

automatically.

9. Click the Gateway tab and verify that these fields are empty. If they are

not empty, highlight and delete all information from the fields.

10. Click the DNS Configuration tab, and then select Disable DNS.

11. Click OK.

12. Click OK when the system finishes copying the files, and then close all

networking windows.

13. Click YES to restart your computer when the System Settings Change

dialog box opens. The computer restarts. The TCP/IP protocol is now

configured on your PC and your Ethernet devices are ready for use.

14. Try to access the Internet. If you cannot access the Internet, go to

Having Difficulty, later in this guide. If you still cannot access the

Internet, contact your cable service provider for further assistance.

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

To configure Windows 2000 systems

1. Click Start, select Settings, and choose Network and Dial-up

Connections.

2. Double-click the Local Area Connection icon in the Network and Dial-up

Connections window.

3. Click Properties in the Local Area Connection Status window.

4. Click Internet Protocol (TCP/IP) in the Local Area Connection Properties

window, and then click Properties.

5. Select both Obtain an IP address automatically and Obtain DNS

server address automatically in the Internet Protocol (TCP/IP)

Properties window, and then click OK.

6. Click Yes to restart your computer when the Local Network window

opens. The computer restarts. The TCP/IP protocol is now configured on

your PC and your Ethernet devices are ready for use.

7. Try to access the Internet. If you cannot access the Internet, go to

Having Difficulty, later in this guide. If you still cannot access the

Internet, contact your cable service provider for further assistance.

To configure Windows XP systems

1. Click Start, select Connect to, and choose Show all connections.

2. Double-click the Local Area Connection icon in the LAN or High-Speed

Internet section of the Network Connections window.

3. Click Properties in the Local Area Connection Status window.

4. Click Internet Protocol (TCP/IP), and then click Properties in the Local

Area Connection Properties window.

5. Select both Obtain an IP address automatically and Obtain DNS

server address automatically in the Internet Protocol (TCP/IP)

Properties window, and then click OK.

6. Click Yes to restart your computer when the Local Network window

opens. The computer restarts. The TCP/IP protocol is now configured on

your PC and your Ethernet devices are ready for use.

7. Try to access the Internet. If you cannot access the Internet, go to

Having Difficulty, later in this guide. If you still cannot access the

Internet, contact your cable service provider for further assistance.

How Do I Configure TCP/IP Protocol

To configure Macintosh systems

1. Click the Apple icon in the upper left corner of the Finder. Scroll down to

Control Panels, and then click TCP/IP.

2. Click Edit on the Finder (gray bar) at the top of the screen. Scroll down to

the bottom of the menu, and then click User Mode.

3. Click Advanced in the User Mode window, and then click OK.

4. Click the Up/Down selector arrows located to the right of the Connect Via

section of the TCP/IP window, and then click Using DHCP Server.

5. Click Options in the TCP/IP window, and then click Active in the TCP/IP

Options window.

Note: In some cases, the Load only when needed option will not

appear. If it appears, select the option. A check mark appears in the

option.

6. Verify that the Use 802.3 option located in the upper right-hand corner of

the TCP/IP window is unchecked. If there is a check mark in the option,

deselect the option, and then click Info in the lower left corner.

7. Is there a Hardware Address listed in this window?

• If yes, click OK. To close the TCP/IP Control Panel window, click File,

and then scroll down to click Close. You have completed this

procedure.

• If no, you must power off your Macintosh.

8. With the power off, simultaneously press and hold down the Command

(Apple), Option, P, and R keys on your keyboard. Keeping those keys

pressed down, power on your Macintosh but do not release these keys

until you hear the Apple chime.

9. Continue pressing these keys for up to three chimes, then release the

keys and allow the computer to restart.

10. When your computer fully reboots, repeat steps 1 through 7 to verify that

all TCP/IP settings are correct. If your computer still does not have a

Hardware Address, contact your authorized Apple dealer or Apple

technical support center for further assistance.

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

How Do I Install USB Drivers?

To install USB drivers, your PC must be equipped with a USB network interface and a Microsoft Windows 98SE,

ME, 2000, or XP operating system. This section contains instructions for installing the cable modem gateway USB

drivers.

If you are not using the USB interface, skip this section.

Installing USB Drivers

The USB driver installation procedures are different for each operating system.

Follow the appropriate instructions in this section for your operating system.

To install Windows 98SE and Windows ME USB drivers

1. Insert the USB Cable Modem Driver Installation Disk into the CD-ROM

drive of your PC.

2. Wait until the Power and Cable indicators on the cable modem illuminate

solid green.

Result: The Add New Hardware Wizard window opens.

3. Click Next in the Add New Hardware Wizard window.

4. Select Search for the best driver for your device (Recommended) in

the Add New Hardware Wizard window, and then click Next.

5. Select CD-ROM drive in the Add New Hardware Wizard window, and

then click Next.

6. Select The updated driver (Recommended) in the Add New Hardware

Wizard window, and then click Next.

7. Click Next in the Add New Hardware Wizard window. The Copying Files

window opens. After 10 to 20 seconds have passed, the Add New

Hardware Wizard window reopens.

8. Click Finish. The USB driver installation is complete.

9. Click Yes in the System Settings Change window to restart your

computer. The computer restarts. The USB drivers are now installed on

your PC and your USB devices are ready for use.

10. Try to access the Internet. If you cannot access the Internet, go to

Having Difficulty, next in this guide. If you still cannot access the

Internet, contact your cable service provider for further assistance.

How Do I Install USB Drivers?

To install Windows 2000 drivers

1. Insert the USB Cable Modem Driver Installation Disk into the CD-ROM

drive of your PC.

2. Wait until the Power and Cable indicators on the cable modem illuminate

solid green.

3. Click Next in the Found New Hardware Wizard window.

4. Select Search for a suitable driver for my device (recommended) in

the Found New Hardware Wizard window, and then click Next.

5. Select CD-ROM drives in the Found New Hardware Wizard window, and

then click Next.

6. Click Next in the Found New Hardware Wizard window. The system

searches for the driver file for your hardware device.

7. After the system finds the USB driver, the Digital Signature Not Found

window opens displaying a confirmation message to continue the

installation.

8. Click Yes to continue the installation. The Found New Hardware Wizard

window reopens with a message that the installation is complete.

9. Click Finish to close the Found New Hardware Wizard window. The USB

drivers are installed on your PC and your USB devices are ready for use.

10. Try to access the Internet. If you cannot access the Internet, go to

Having Difficulty, next in this guide. If you still cannot access the

Internet, contact your cable service provider for further assistance.

To install Windows XP drivers

1. Insert the USB Cable Modem Driver Installation Disk into the CD-ROM

drive of your PC.

2. Wait until the Power and Cable indicators on the cable modem illuminate

solid green.

3. Select Install from a list or specific location (Advanced) in the Found

New Hardware Wizard window, and then click Next.

4. Select Search removable media (floppy, CD-ROM) in the Found New

Hardware Wizard window, and then click Next.

5. Click Continue Anyway in the Hardware Installation window to continue

the installation. The Found New Hardware Wizard window reopens with a

message that the installation has finished.

6. Click Finish to close the Found New Hardware Wizard window. The USB

drivers are installed on your PC and your USB devices are ready for use.

7. Try to access the Internet. If you cannot access the Internet, go to Having

Difficulty, next in this guide. If you still cannot access the Internet, contact

your cable service provider for further assistance.

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

Having Difficulty?

Frequently Asked Questions

Q. What if I don’t subscribe to cable TV?

A. If cable TV is available in your area, data service may be made available with

or without subscribing to cable TV service. Contact your local cable service

provider for complete information on cable services, including high-speed

Internet access.

Q. How do I arrange for installation?

A. Professional installation from your cable service provider may be provided. A

professional installation ensures proper cable connection to the modem and to

your PC, and ensures proper configuration of all hardware and software settings.

Contact your cable service provider for more information about installation.

Q. How does the WebSTAR Cable Modem connect to my computer?

A. The cable modem connects to the USB port or the 10/100BaseT Ethernet

port on your PC. If your PC is not equipped with an Ethernet interface, an

Ethernet card is available from your local PC or office supply retailer, or from

your cable service provider.

Q. After my cable modem is connected, how do I access the Internet?

A. Your local cable service provider becomes your Internet Service Provider

(ISP), offering a wide range of services including e-mail, chat, news, and

information services. Your cable service provider will provide the software you

will need.

Q. Can I watch TV and surf the Internet at the same time?

A. Absolutely! If you subscribe to cable television service, you can watch TV and

use your cable modem at the same time by connecting your TV and your cable

modem to the cable network using an optional cable signal splitter.

Q. Can I run more than one device on the modem?

A. Yes—a single WebSTAR cable modem will support up to 31 Ethernet devices

utilizing a user-supplied Ethernet hub that you can purchase at your local PC or

office supply retailer. Another user at your location can simultaneously connect to

the USB port on the cable modem. Contact your cable service provider for further

assistance.

Having Difficulty?

Common Troubleshooting Issues

I don’t understand the front panel status indicators.

See Front Panel Status Indicator Functions, later in this guide for more

detailed information on the front panel status indicator operation and function.

The modem does not register an Ethernet connection.

• Verify that your computer has a 10/100BaseT Ethernet card and that the

Ethernet driver software is properly installed. If you purchase and install an

Ethernet card, follow the installation instructions very carefully.

• Verify the status of the front panel status indicator lights.

The modem does not register an Ethernet connection after connecting to a hub.

If you are connecting multiple PCs to the cable modem, you should first connect

the modem to the up-link port of the hub. The LINK LED of the hub will illuminate

continuously.

The modem does not register a cable connection.

• The modem works with a standard 75-ohm RF coaxial cable. If you are using

a different cable, your cable modem will not function properly. Contact your

cable service provider to determine whether you are using the correct cable.

• Verify that you have followed the procedure in How Do I Renew the IP

Address on My PC, later in this guide.

• Your NIC card or USB interface may be malfunctioning. Refer to the

troubleshooting information in the NIC or USB documentation.

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

Tips for Improved Performance

Check and Correct

If your cable modem does not perform as expected, the following tips may help. If

you need further assistance, contact your cable service provider.

• Verify that the plug to your cable modem AC adapter is properly inserted into

an electrical outlet.

• Verify that your cable modem AC adapter is not plugged into an electrical

outlet that is controlled by a wall switch. If a wall switch controls the electrical

outlet, make sure the switch is in the ON position.

• Verify that the Power and Cable indicators on the front panel of your cable

modem are illuminated.

• Verify that all cables are properly connected, and that you are using the

correct cables.

• Verify that your cable service is active and that it supports two-way service.

• Verify that your TCP/IP is properly installed and configured if you are using

the Ethernet connection.

• Verify that you have followed the procedures in How Do I Install USB

Drivers, earlier in this guide, if you are using the USB connection.

• Verify that you have called your cable service provider and given them the

serial number and MAC address of your cable modem.

• If you are using a cable signal splitter so that you can connect the cable

modem to other devices, remove the splitter and reconnect the cables so that

the cable modem is connected directly to the cable input. If the cable modem

now functions properly, the cable signal splitter may be defective and may

need to be replaced.

How Do I Renew the IP Address on My PC?

If your PC cannot access the Internet after the cable modem is online, it is possible that your PC did not renew its

IP address.

Renewing the IP Address on Your PC

Follow the appropriate instructions in this section for your operating system to

renew the IP address on your PC.

To renew the IP address for Windows 95, 98, 98SE, or ME systems

1. Click Start, and then click Run to open the Run window.

2. Type winipcfg in the Open field, and click OK to execute the winipcfg

command. The IP Configuration window opens.

3. Click the down arrow to the right of the top field, and select the Ethernet

adapter that is installed on your PC. The IP Configuration window

displays the Ethernet adapter information.

4. Click Release, and then click Renew. The IP Configuration window

displays a new IP address.

5. Click OK to close the IP Configuration window, you have completed this

procedure.

If you cannot access the Internet, contact your cable service

provider for further assistance.

To renew the IP address for Windows 2000, NT, XP systems

1. Open a Command Prompt (DOS) window.

2. At the C:/ prompt, type ipconfig/release and press Enter. The system

releases the IP address.

3. At the C:/ prompt, type ipconfig/renew and press Enter. The system

displays a new IP address.

4. To close the Command Prompt window, click on the X in the upper right

corner of the window. You have completed this procedure.

If you cannot access the Internet, contact your cable service

provider for further assistance.

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

Front Panel Status Indicator Functions

Initial Power Up, Calibration, and Registration

The following chart illustrates the sequence of steps and the corresponding

appearance of the front panel status indicators on the cable modem during power

up, calibration, and registration on the network. Use this chart to troubleshoot the

power up, calibration, and registration process of your cable modem.

After the cable modem completes step 7 (Registration Completed), the

modem proceeds immediately to step 8. See the chart in Normal Operations,

next in this section.

Front Panel LED Status Indicators During Initial Power Up, Calibration, and Registration

Step

1 POWER

Front Panel

Indicator

Self

Test

Registration

Completed

Downstream

Scan

Downstream

Signal Lock

Ranging

Requesting

IP Address

5PC ON ON

BLINKING

Registering

4 CABLE ON ON

SLOW

BLINKING

1 blink

MOMENTARY

ON OFF BLINKING

2 blinks

BLINKING

4 blinks

RECEIVE ON ONOFF OCCASIONAL

BLINKING

OCCASIONAL

BLINKING

OCCASIONAL

BLINKING

OCCASIONAL

BLINKING

SEND ON ONOFF OFF OCCASIONAL

BLINKING

OCCASIONAL

BLINKING

OCCASIONAL

BLINKING

T10683

Normal Operations

The following chart illustrates the appearance of the cable modem front panel

LED status indicators during normal operations.

Front Panel LED Status Indicators During Normal Operations

Step

1 POWER

Front Panel

Indicator

Normal Operations

5PC

2 RECEIVE

4 CABLE

ON - When a single device is connected to either the Ethernet or USB port and no data is being

sent to or from the modem.

BLINKS - LED blinks when only one Ethernet or USB device is connected and

data is being transferrd between the consumer premise equipment (CPE) and the cable modem.

OFF - When no devices are connected to either the Ethernet or USB ports.

Note: With both Ethernet and USB devices connected to the modem at the same time, when data is being

transferred through only one of the devices (Ethernet or USB), the indicator will illuminate continuously.

Whenever data is being sent through both data ports (Ethernet and USB) simultaneously, the indicator will

blink as described above.

BLINKS - To indicate data is being transferred between the modem and the network.

3 SEND BLINKS - To indicate data is being transferred between the modem and the network.

T10969

Front Panel Status Indicator Functions

Special Conditions

The following chart describes the appearance of the front panel status indicators

on the cable modem during special conditions to show that either cable modem

access protection is enabled, or that you have been denied network access.

T10975

Front Panel LED Status Indicators During Special Conditions

1 POWER

Front Panel Indicator

2 RECEIVE

4 CABLE

Network Access Denied

SLOW BLINKING

1 time per second

5PC

3 SEND

OFF

Cable Modem

Access Protection

Enabled

OFF

OFF SLOW BLINKING

1 time per second

SLOW BLINKING

1 time per second

SLOW BLINKING

1 time per second

SLOW BLINKING

1 time per second

SLOW BLINKING

1 time per second

WebSTAR Model DPC2100 and EPC2100 Cable Modem User’s Guide

Notices

Trademarks

Scientific-Atlanta and the Scientific-Atlanta ARCs logo are registered trademarks

of Scientific-Atlanta, Inc. DPC2100, EPC2100, WebSTAR, SciCare, and

“Bringing the Interactive Experience Home” are trademarks of Scientific-Atlanta,

Inc. DOCSIS is a registered trademark of Cable Television Laboratories, Inc.

Other trademarks listed herein are the property of their respective owners.

Disclaimer

Scientific-Atlanta, Inc. assumes no responsibility for errors or omissions that may

appear in this guide. Scientific-Atlanta reserves the right to change this guide at

any time without notice.

Documentation Copyright Notice

Printed in the United States of America.

Information in this document is subject to change without notice. No part of this

document may be reproduced in any form without the express written permission

of Scientific-Atlanta, Inc.

Software Use Notice

The software described in this document is copyrighted and furnished to you

under a license agreement. You may only use or copy this software in

accordance with the terms of your license agreement.

Firmware Use Notice

The firmware in this equipment is copyrighted. You may only use the firmware in

the equipment in which it is provided. Any reproduction or distribution of this

firmware, or any portion of it, without express written consent is prohibited.

FCC Compliance

United States FCC Compliance

This equipment has been tested and found to comply with the applicable limits of

Part 15 of FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. This

equipment generates, uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful

interference to radio or TV reception, which can be determined by turning the

equipment off and on. The user is encouraged to try to correct the interference by

one or more of the following measures:

• Increase the separation between the equipment and receiver

• Connect the equipment into an outlet on a circuit different from that to which

the receiver is connected

• Consult your cable company or an experienced radio/TV technician for help

Any changes or modifications not expressly approved by Scientific-Atlanta could

void the user’s authority to operate the equipment.

The information shown in the FCC Declaration of Conformity paragraph below is

a requirement of the FCC and is intended to supply you with information

regarding the FCC approval of this device. The phone numbers listed are for

FCC-related questions only and not intended for questions regarding the

connection or operation for this device. Please contact your cable service

provider for any questions you may have regarding the operation or installation of

this device.

FCC Declaration of Conformity

This device complies with Part 15 of FCC Rules. Operation is subject to the

following two conditions: 1) the device may not cause harmful interference, and 2)

the device must accept any interference received, including interference that may

cause undesired operation.

WebSTAR Cable Modems

Model DPC2100 and Model EPC2100

Scientific-Atlanta, Inc.

5030 Sugarloaf Parkway

Lawrenceville, Georgia 30044 USA

Telephone: 770-236-1077

Canada EMI Regulation

This Class B digital apparatus meets all requirements of the Canadian

Interference Causing Equipment Regulations.

Cet appareil numérique de la classe B respecte toutes les exigences du

Réglement sur le matériel brouilleur du Canada.

For Information

If You Have Questions

If you have technical questions, contact your local cable service provider.

Bringing the Interactive

Experience Home

Scientific-Atlanta, Inc. 5030 Sugarloaf Parkway, Box 565447 Lawrenceville, GA 30042

770.236.5000 www.scientificatlanta.com

Product and service availability subject to change without notice.

September 2003 Printed in USA Part Number 4005527 Rev A

Scientific Atlanta Webstar Dpc2100 Users Manual User's Guide And EPC2100 Cable Modem

EPC2100 to the manual 48a4b52d-ce20-45be-a1b9-46a86e3e480b

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