Scientific Atlanta DPR2320, EPR2320 User Manual

WebSTAR™ DPR2320™ and EPR2320™ Gateway Cable Modems User’s Guide

Introduction

Welcome to the exciting world of home and office networking. Your new WebSTAR™ DPR2320™ or EPR2320™ Gateway Cable Modem allows several users to share one high-speed broadband connection across multiple PCs, laptops, digital cameras, personal data assistants (PDAs), and Internet devices. The WebSTAR DPR2320 and EPR2320 Gateway Cable Modems make sharing files and photos with your family and friends hassle free. With a WebSTAR Gateway 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 gateway cable modem for Internet access and for high-speed wired or wireless broadband networking for your home or office. Refer to the appropriate section in this guide for the specific information you need for your situation. Contact your cable service provider for more information about subscribing to these services.

Benefits and Features

Your new gateway 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

• Allows you to attach multiple devices in your home or office to the gateway cable modem for high-speed networking and sharing of files and folders without first copying them onto a CD or diskette

• Facilitates high-speed wireless networking of PCs, laptops, and PDAs

• Offers an integrated router (gateway) to simplify setting up a home or office

network

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

• Provides parental control and advanced firewall technology

• Includes both USB and Ethernet connections

• Allows vertical, horizontal, or wall-mount placement

• Allows automatic software upgrades by your cable service provider

• Assures a broad range of interoperability with most cable service providers

by complying with Data Over Cable System Interface Specifications (DOCSIS) 1.0, 1.1, and 2.0 standards along with CableHome 1.0 specifications

WebSTAR DPR2320 and EPR2320 Gateway Cable Modems 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 Gateway 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

How Do I Troubleshoot My Internet Service Installation? ............................................................................................18

What are the Requirements for Ethernet Network Devices?........................................................................................20

How Do I Select and Place Ethernet Network Devices?..............................................................................................21

How Do I Connect Ethernet Network Devices?............................................................................................................22

What are the Requirements for USB Network Devices?..............................................................................................24

How Do I Select and Place USB Network Devices? ....................................................................................................25

How Do I Connect USB Network Devices?..................................................................................................................26

What are the Requirements for Wireless Network Devices? .......................................................................................28

How Do I Select and Place Wireless Network Devices?..............................................................................................29

How Do I Install Wireless Network Devices? ...............................................................................................................30

How Do I Configure the Gateway Cable Modems?......................................................................................................32

Having Difficulty? ..........................................................................................................................................................72

Tips for Improved Performance ....................................................................................................................................74

How Do I Renew the IP Address on My PC? ...............................................................................................................75

Front Panel Status Indicator Functions ........................................................................................................................76

Notices..........................................................................................................................................................................78

FCC Compliance ..........................................................................................................................................................79

For Information……………………………………………………………………………………………..………...Back Cover

IMPORTANT RULES FOR SAFE OPERAT ION

Note to Installer

Important Rules for Safe Operation

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.

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.

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.

TO PREVENT FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.

This symbol is intended to alert you of the presence of important operating and maintenance (servicing) instructions in the literature accompanying this product.

CAUTION

RISK OF ELECTRIC SHOCK

DO NOT OPEN

AVIS

WARNING

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

WARNING:

Avoid personal injury and damage to this equipment. An unstable surface may cause this equipment to fall.

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.

WebSTAR DPR2320 and EPR2320 Gateway Cable Modems 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 DPR2320 and EPR2320 Gateway Cable Modems User ’s Guide

What’s In the Carton?

When you receive your gateway 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:

One Model DPR2320 or EPR2320 Gateway Cable Modem with detachable antenna

One power adapter with power cord

One CD-ROM containing the user’s guide and the USB drivers

If any of these items are missing or damaged, please contact your cable service provider for assistance.

One Ethernet cable (CAT5/RJ-45)

One USB cable

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

by Scientific-Atlanta, Inc.

POWER

RECEIVE

SEND

CABLE

DATA

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

T10948

6 PC Wireless—Illuminates solid green to indicate that a

wireless access point is enabled and blinks to indicate that wireless data is being transferred over the wireless connection

Note: 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 DPR2320 and EPR2320 Gateway Cable Modems User ’s Guide

Back Panel Description

The following illustration describes the back panel components of the DPR2320 and the EPR2320.

1 ANTENNA— Provides a communication connection for the

built-in wireless access point (WAP) to allow wireless devices to communicate with the cable modem

12 VDC

RESET

ETHERNET CABLE

USB

ANTENNA

POWER

AC power adapter that is provided with your cable modem

2 POWER—Connects the cable modem to the DC output of the

CAUTION:

Avoid damage to your equipment. Only use the AC power adapter and power cord that is provided with your cable modem.

3 RESET—Activating this switch resets the gateway to factory

default values and reboots the cable modem

This switch is for maintenance purposes only.

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

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

port on your PC or your home network

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

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

from your cable service provider

T10947

Where is the Best Location for My Gateway Cable Modem?

The ideal location for your gateway 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 gateway cable modem.

Consider these recommendations:

• Position your PC and gateway cable modem so that they are located near an AC power outlet.

• Position your PC and gateway 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 gateway cable modem should not be restricted.

• Choose a location that protects the gateway cable modem from accidental

disturbance or harm.

• Read this user’s guide thoroughly before you decide where to place your gateway cable modem.

What are the System Requirements for Internet Service?

To ensure that your gateway 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 a PC

• 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 PC

System Requirements for a USB Connection

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

• A master USB port installed in your PC

WebSTAR DPR2320 and EPR2320 Gateway Cable Modems User ’s Guide

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

Before you can use your gateway cable modem, you need to have a high-speed Internet access account. If you do not have a high-speed Internet access account, you 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 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, the Media Access Control (MAC) address, and the WLAN data 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. The WLAN data MAC address consists of a series of alphanumeric characters preceded by WLAN DATA MAC. See the following

illustration of a sample label.

Serial Number

MODEL DPR2320 SERIES CABLE MODEM/ROUTER P/N: XXXXXX

MAC Address

MODEM NO:

S/N SM0697286

MAC 00407B-796771

date of mfg: 06/03 Factory ID: 1 MADE IN TAIWAN CM

USB MAC:

P-LAN MAC:

WLAN MGT MAC:

WLAN DATA MAC:

CMCI MAC:

121 103 113 00407B-796772

00407B-796774 00407B-796775 00407B-796776 00407B-796777

WLAN DATA

MAC Address

T10723

Write down these numbers in the space provided here.

Serial Number _______________________ MAC Address ________________________ WLAN DATA MAC Address _____________________

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, the MAC address, and the WLAN data 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

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

How Do I Connect My Devices to Use the Internet?

You can use your gateway 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 gateway 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.

ower Suppl

Power

Supply

ANTENNA

12 VDC

RESET

ETHERNET CABLE

USB

Wireless Laptop

POWER

Cable

Splitter

Cables

Cable-Ready TV,

VCR, or Set-Top

Ethernet

Hub

Cable

Converter

USB Cable

CH+

VOL

VOL+

MENUGUIDE INFO A/B

POWER

BYPASS

T10949

WebSTAR DPR2320 and EPR2320 Gateway Cable Modems User ’s Guide

To install the gateway cable modem

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

WARNING:

To avoid personal injury or damage to your equipment, follow these steps in the exact order shown.

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.

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 gateway 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 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/Ethernet adapter.

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

13.

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 DPR2320 and EPR2320 Gateway Cable Modems 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 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 at least 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 DPR2320 and EPR2320 Gateway Cable Modems 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 gateway cable modem 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

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

1. drive of your PC.

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

2. solid green.

Result: The Add New Hardware Wizard window opens.

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

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.

Click Finish. The USB driver installation is complete.

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, later 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 and displays 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.

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

10.

Having Difficulty, later 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.

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 DPR2320 and EPR2320 Gateway Cable Modems User ’s Guide

How Do I Troubleshoot My Internet Service Installation?

I cannot connect to the Internet

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

inserted into an electrical outlet.

• Verify that your gateway 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, CABLE, and the appropriate indicator lights for your

network connection and on the front panel of your gateway 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 TCP/IP is properly installed and configured on all devices if you

are using the Ethernet connections.

• Verify that you have followed the procedure for Installing the USB Drivers

for Windows 98SE, ME, 2000, and XP, 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 gateway cable modem.

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

signal to other devices, remove the splitter and reconnect the cable so that the gateway cable modem is connected directly to the main cable input. If the gateway cable modem now functions properly, the cable signal splitter may be defective and may need to be replaced.

My gateway cable modem does not register an Ethernet connection

Even new devices do not always have Ethernet capabilities. Verify that your device 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.

My gateway cable modem does not register a cable connection

• The gateway cable modem works with a standard, 75-ohm, RF coaxial cable.

If you are using a different cable, your gateway cable modem will not function properly. Contact your cable service provider to determine if you are using the correct cable.

• You may need to renew the IP address on your PC. Refer to I need to

renew the IP address on my PC, next in this section for instructions on how

to renew the IP address for your particular operating system.

• Your USB interface may be malfunctioning. Refer to the troubleshooting

information in your USB documentation.

How Do I Troubleshoot My Internet Service Installation?

I need to 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. 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, and ME systems

1. Click Start, and then click Run to open the Run window. Type winipcfg in the Open field, and click OK to execute the winipcfg

2. command. The IP Configuration window opens.

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

3. adapter that is installed on your PC. The IP Configuration window displays the Ethernet adapter information.

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

4. displays a new IP address.

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

5. procedure.

If you cannot access the Internet, contact your cable service

provider for further assistance.

To renew the IP Address for Windows 2000, NT, or XP systems

1. Open a Command Prompt (DOS) window.

Type ipconfig/release at the C:/ prompt and press Enter. The system

2. releases the IP address.

Type ipconfig/renew at the C:/ prompt and press Enter. The system

3. displays a new IP address.

Click on the X in the upper-right corner of the window to close the

Command Prompt window. You have completed this procedure.

If you cannot access the Internet, contact your cable service

provider for further assistance.

WebSTAR DPR2320 and EPR2320 Gateway Cable Modems User ’s Guide

What are the Requirements for Ethernet Network Devices?

How Many Ethernet Network Devices Can I Connect?

The gateway cable modem can support several Ethernet network devices using either the Ethernet port on the back panel of the unit, or external Ethernet hubs that must be purchased separately. The theoretical maximum number of Ethernet network devices supported is by the gateway cable modem 253. However, under normal circumstances, the number of devices connected should be a much lower number. Contact your cable service provider for more information on the maximum number of Ethernet network devices to connect to the gateway cable modem in order to maintain optimal network performance.

What are the Wiring Requirements for Ethernet Networking?

A number of factors can impact the practical limit of the network. Although the gateway cable modem is designed to support several Ethernet network devices, it is important to view the characteristics of the entire network and not just each individual node. The theoretical distance between two 10/100BaseT CAT-5 Ethernet hubs is 382 feet (100 meters). Contact your cable service provider or consult the documentation for your Ethernet network devices for more information.

Scientific-Atlanta recommends that you use CAT-5 Ethernet cables.

Do I Need to Configure the TCP/IP Protocol on My Computer?

In order for you to use Ethernet network devices on your network, you must have

the TCP/IP protocol properly configured on your PC. Refer to How Do I Configure TCP/IP Protocol, earlier in this guide, for detailed information on

configuring the TCP/IP protocol.

How Do I Select and Place Ethernet Network Devices?

You can use a large variety of Ethernet network devices with your gateway cable modem. These include NIC cards, hubs, bridges, etc. Contact your cable service provider or consult the documentation for your Ethernet network devices for more information on configuring Ethernet network devices.

Where is the Best Location for My Ethernet Network Devices?

You should work with your cable service provider to choose the best location for your Ethernet network devices. Consider these recommendations:

• Location of two-way cable outlets

• Distance of the Ethernet network devices from the gateway cable modem

• Location of computers and other equipment from AC power outlets

• Ease of running Ethernet cable to the Ethernet network devices

Now that you have selected a location for your Ethernet network devices, the

next step is to place and connect your Ethernet network devices. Go to How Do I Connect Ethernet Network Devices, next in this guide.

WebSTAR DPR2320 and EPR2320 Gateway Cable Modems User ’s Guide

How Do I Connect Ethernet Network Devices?

Connecting Ethernet Devices

You must connect your Ethernet devices for use with the gateway cable modem. Professional installation may be available. Contact your local cable service provider for further assistance.

The following diagram illustrates one of the various Ethernet network connection options that are available to you.

Cable

ANTENNA

Splitter

Cable

ower Suppl

Power

Supply

12 VDC

RESET

ETHERNET CABLE

USB

Wireless Laptop

POWER

Cables

Cable-Ready TV,

VCR, or Set-Top

Ethernet

Hub

Converter

USB Cable

CH+

VOL+

VOL

MENU GUIDE INFO A/B

POWER

BYPASS

T10949

WARNING:

• Hazardous electrical voltages can be present on any connected wiring. Ethernet wiring and connections must be properly insulated to prevent electrical shock. Disconnect power from the gateway cable modem before attempting to connect to any device.

• To avoid personal injury, follow these steps in the exact order shown.

How Do I Connect Ethernet Network Devices?

To connect Ethernet devices

Read the warnings and caution on this page. Then, follow the subsequent installation procedures to ensure proper gateway cable modem operation when connecting Ethernet network devices.

Select locations for Ethernet network devices. For more information, see

How Do I Select and Place Ethernet Network Devices, earlier in this

guide.

2. Connect an Ethernet port on the gateway cable modem to your PC.

Connect additional Ethernet network devices using the other Ethernet

3. ports on the gateway cable modem, or by connecting an Ethernet hub or router to the gateway cable modem.

Connect the active RF coaxial cable to the CABLE connector on the back

4. of the gateway cable modem. Use an optional cable signal splitter to add a TV, a DHCT or set-top converter, or a VCR.

After all connections are complete, 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.

The gateway cable modem begins an automatic search to locate and

6. sign on to the network. In some unusual circumstances, this process may take up to 5 minutes. The gateway cable modem is ready for use when

the CABLE status indicator on the front panel stops blinking and

illuminates continuously.

7. Verify that all Ethernet network devices are working properly.

CAUTION:

To prevent possible damage to the equipment, disconnect any other service before connecting your gateway cable modem to other devices.

You will not be able to check the Ethernet front panel status

indicators on the gateway cable modem until after two or more Ethernet network devices are connected to the gateway cable modem.

WebSTAR DPR2320 and EPR2320 Gateway Cable Modems User ’s Guide

What are the Requirements for USB Network Devices?

How Many USB Devices Can I Connect?

Contact your cable service provider for more information on the maximum number of USB network devices to connect to the gateway cable modem in order to maintain optimal network performance.

What are the Wiring Requirements?

Several factors can impact the practical limit of the network. Use correct USB cables. Contact your cable service provider or consult the documentation for your USB network device for more information.

Do I Need to Install USB Drivers on My Computer?

To use USB network devices, you must have the correct USB drivers install on

your PC. Refer to How Do I Install USB Drivers, earlier in this guide, for

information on installing USB drivers.

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