NETGEAR Nighthawk CM1200 Manuel utilisateur

User Manual

Nighthawk Multi-Gig Speed Cable Modem

Model CM1200

NETGEAR, Inc.

350 E. Plumeria DriveDecember 2018 San Jose, CA 95134, USA202-11964-01

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 Multi-Gig Speed Cable Modem

Contents

Chapter 1 Hardware Setup

Unpack Your Cable Modem................................................................6

Front Panel and LEDs...........................................................................7

Rear Panel..............................................................................................8

Label.....................................................................................................10

System Requirements........................................................................10

Install and Activate Your Cable Modem..........................................11

Connect Your Cable Modem to a Computer.............................11

Activate Your Internet Service......................................................12

Perform a Speed Test....................................................................13

Connect Your Cable Modem to a Router After Installation and

Activation........................................................................................14

Chapter 2 Manage Your Network

Change the admin Password............................................................16

View Cable Modem Initialization......................................................17

View Cable Modem Status................................................................18

View and Clear Event Logs................................................................18

Specify the Cable Connection Starting Frequency........................19

Ethernet Port Aggregation................................................................19

Set Up Ethernet Port Aggregation...............................................20

View the Ethernet Port Aggregation Status................................20

Change the Ethernet Port Aggregation Configuration Mode..21

Reboot the Cable Modem.................................................................21

Reset the Cable Modem to Factory Default Settings.....................22

Use the Reset Button on the Back Panel..........................................23

Use the Factory Reset Software Button............................................23

Chapter 3 Troubleshooting

Use LEDs to Troubleshoot.................................................................25

Cannot Log In to the Cable Modem................................................26

Troubleshoot the Cable Internet Connection.................................27

Chapter 4 Supplemental Information

Factory Settings..................................................................................29

Technical Specifications.....................................................................29

Nighthawk Multi-Gig Speed Cable Modem

Hardware Setup

This chapter covers the following topics:

• Unpack Your Cable Modem

• 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.

Unpack Your Cable Modem

Your package contains the following items.

Figure 1. Package contents

1. High Speed Cable Modem

2. Ethernet cable

3. Power adapter

User Manual6Hardware Setup

Nighthawk Multi-Gig Speed Cable Modem

Front Panel and LEDs

The cable modem provides status LEDs on the front.

Figure 2. 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 Manual7Hardware Setup

Nighthawk Multi-Gig Speed Cable Modem

Table 1. LED descriptions

DescriptionIconLED

•Solid green. 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 25.

Power

•Solid amber. One downstream channel is locked.

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

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

channel.

•Off. No downstream channel is locked.

Downstream

•Solid amber. One upstream channel is locked.

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

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

channel.

•Off. No upstream channel is locked.

Upstream

•Solid green. The cable modem is online.

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

provider’s cable modem termination system (CMTS).

•Off. The cable modem is offline.

Internet

•Green. A powered-on device is connected to the LAN port at 1000

Mbps.

•Amber. A powered-on device is connected to the LAN port at 10 Mbps

or 100 Mbps.

•Off. No device is connected to the LAN port.

•Blinking green or amber. The LAN port is processing traffic.

LAN 1, 2, 3, and 4

Rear Panel

User Manual8Hardware Setup

Nighthawk Multi-Gig Speed Cable Modem

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

Figure 3. 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 green and the cable

modem returns to its factory settings.

•LAN ports. For installation and activation, connect a computer to the LAN 1 port.

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

disconnect the computer and connect a router to this port. You can use the LAN 2

port to set up Ethernet port aggregation. For more information, see Ethernet Port

Aggregation on page 19.

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

•Power On/Off button. Press the Power On/Off button to provide power to the

cable modem.

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

to the DC power connector.

User Manual9Hardware Setup

Nighthawk Multi-Gig Speed Cable Modem

Label

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

Figure 4. 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

-Safari 1.4 or later

- Google Chrome 11.0 or later

•Cable broadband Internet service

User Manual10Hardware Setup

Nighthawk Multi-Gig Speed Cable Modem

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