NETGEAR NIGHTHAWK CM2000 Manuel utilisateur

User Manual

Nighthawk® 2.5Gbps Multi-Gig Speed

Cable Modem

Model CM2000

NETGEAR, Inc.

350 E. Plumeria DriveMay 2020

San Jose, CA 95134, USA202-12065-01

Support

Thank you for purchasing this NETGEAR product.

You can visit https://www.netgear.com/support/ to register your product, get help,

access the latest downloads and user manuals, and join our community. We recommend

that you use only official NETGEAR support resources.

Contact your Internet service provider for technical support.

Trademarks

©NETGEAR, Inc. NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc.

Any non-NETGEAR trademarks are used for reference purposes only.

Compliance and Conformity

For regulatory compliance information, visit https://www.netgear.com/about/regulatory/.

See the regulatory compliance document before connecting the power supply.

Note to CATV system Installer- This reminder is provided to call the CATV systems

installer's attention to Section 820-93 of the National Electrical Code which provide

guidelines for proper grounding and in particular, specify that Coaxial cable shield shall

connected to the grounding system of the building, as close to the point of cable entry

as practical

Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem

Contents

Chapter 1 Hardware Setup

Front Panel and LEDs...........................................................................5

Rear Panel..............................................................................................6

Label.......................................................................................................8

System Requirements...........................................................................8

Install and Activate Your Cable Modem............................................9

Connect Your Cable Modem to a Computer...............................9

Activate Your Internet Service......................................................10

Perform a Speed Test....................................................................11

Connect Your Cable Modem to a Router After Installation and

Activation........................................................................................11

Chapter 2 Manage Your Network

Change the admin password............................................................14

View cable modem initialization.......................................................15

View cable modem status..................................................................16

View and clear event logs..................................................................16

Specify the cable connection starting frequency...........................17

Reboot the cable modem..................................................................17

Reset the cable modem to factory default settings........................18

Use the reset button on the back panel..........................................19

Use the factory reset software button..............................................19

Chapter 3 Troubleshooting

Use LEDs to Troubleshoot.................................................................21

Cannot log in to the cable modem..................................................22

Troubleshoot the cable internet connection..................................23

Chapter 4 Supplemental Information

Factory Settings..................................................................................25

Technical Specifications.....................................................................25

Hardware Setup

This chapter covers the following topics:

• Front Panel and LEDs

• Rear Panel

• Label

• System Requirements

• Install and Activate Your Cable Modem

For more information about the topics covered in this manual, visit the support website

at support.netgear.com.

Front Panel and LEDs

The cable modem provides status LEDs on the front.

Figure 1. Front panel

You can use the LEDs to verify status and connections. The following table lists and

describes each LED on the cable modem.

User Manual5Hardware Setup

Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem

Table 1. LED descriptions

DescriptionIconLED

•Solid white. Power is supplied to the cable modem.

•Off. No power is supplied to the cable modem.

•Solid red. The cable modem is too warm and might overheat. For

more information about this condition, see Use LEDs to Troubleshoot

on page 21.

Power

•Solid amber. One downstream channel is locked.

•Solid white. Two or more downstream channels are locked.

•Blinking white. The cable modem is scanning for a downstream

channel.

•Off. No downstream channel is locked.

Downstream

•Solid amber. One upstream channel is locked.

•Solid white. Two or more upstream channels are locked.

•Blinking white. The cable modem is scanning for an upstream

channel.

•Off. No upstream channel is locked.

Upstream

•Solid white. The cable modem is online.

•Blinking white. The cable modem is synchronizing with the cable

provider’s cable modem termination system (CMTS).

•Off. The cable modem is offline.

Online

•Solid white. A 2.5 Gbps connection is established.

•Blinking blue. The port is sending or receiving traffic at 2.5 Gbps.

•Solid white. A 1 Gbps connection is established.

•Blinking white. The port is sending or receiving traffic at 1 Gbps.

•Solid amber. A 100 Mbps connection is established.

•Blinking amber. The port is sending or receiving traffic at 100 Mbps.

Multi Gig Port

Rear Panel

The connections and button on the rear panel are shown in the following figure.

User Manual6Hardware Setup

Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem

Figure 2. Rear panel

Viewed from top to bottom, the back panel contains the following components:

•Reset button. Pressing the Reset button resets the cable modem. If the Reset button

is pressed for at least seven seconds, the Power LED blinks white and the cable

modem returns to its factory settings.

•Ethernet port. For installation and activation, connect a computer to the Ethernet

port. After you install your cable modem and activate your Internet service, you can

disconnect your computer and connect a router to the Ethernet port.

User Manual7Hardware Setup

Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem

•Coaxial cable port. Connect the cable port to a cable wall outlet.

•DC power connector. Connect the power adapter that came in the product package

to the DC power connector.

Label

The cable modem label shows the login information, MAC address, and serial number.

Figure 3. Cable modem label

System Requirements

You need the following to install your cable modem:

•Compatible operating system:

- Windows 10

- Windows 8

- Windows 7

- Windows Vista

- Windows XP

- Windows 2000

- Mac OS

- Other operating systems running a TCP/IP network

•Compatible web browser:

-Microsoft Internet Explorer 5.0 or later

-Firefox 2.0 or later

User Manual8Hardware Setup

Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem

-Safari 1.4 or later

- Google Chrome 11.0 or later

•Cable broadband Internet service

Install and Activate Your Cable Modem

The cable modem provides a connection between your cable Internet provider’s network

and your computer, router, or WiFi router.

Connect Your Cable Modem to a Computer

After you install the cable modem and activate your Internet service, you can disconnect

the computer and connect a router to the cable modem.

To connect your cable modem directly to a computer:

1. Turn off and disconnect existing modems and routers.

If you are replacing a modem that is currently connected in your home, unplug the

modem and plug the new cable modem into the same outlet.

2. Connect a coaxial cable.

Use a coaxial cable to connect the cable port on the cable modem to a cable wall

outlet. Make sure that the cable is tightly connected.

3. Connect the power adapter to the cable modem and plug the power adapter into

an electrical outlet.

When the startup is complete, the Power LED lights white.

4. Wait for the cable modem to come online.

The cable modem comes online when the Internet LED stops blinking and lights

solid white.

This process might take up to 10 minutes.

5. Connect a computer to the cable modem.

Use the Ethernet cable that is provided in the package to connect a computer to the

Ethernet port on the cable modem.

6. Reboot the computer.

7. Activate your Internet service.

For information about how to activate your Internet service, see Activate Your Internet

Service on page 10.

User Manual9Hardware Setup

Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem

Note: After you install and activate the cable modem, you can disconnect the

computer and connect a router to the cable modem. For more information, see

Connect Your Cable Modem to a Router After Installation and Activation on page

11.

Activate Your Internet Service

Before you activate your Internet service, gather the following information:

•Your cable Internet provider account information

•Cable modem model number, which is CM2000

•Cable modem serial number, which is on the cable modem label

•Cable modem MAC address, which is on the cable modem label

Figure 4. Example of a cable modem label

The following is contact information for cable Internet providers that support your cable

modem.

Table 2. Cable Internet provider contact information

Contact InformationCable

Internet

Provider

https://cox.com/activate

1-888-556-1193

Cox

https://support.mediacomcable.com/

1-855-Mediacom (1-855-633-4226)

Mediacom

https://install.optimum.com/JointInstall/

1-877-810-6750

Optimum

https://support.sparklight.com/

1-877-692-2253

Sparklight

User Manual10Hardware Setup

Nighthawk CM2000 2.5 Gbps Ultra-High Speed Cable Modem

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