NETGEAR CM1000 Manuale utente

350 East Plumeria Drive

San Jose, CA 95134

USA

September 2016

202-11665-02

High Speed Cable Modem

Model CM1000

User Manual

High Speed Cable Modem

Support

Thank you for purchasing this NETGEAR product. You can visit 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.

Conformity

For the current EU Declaration of Conformity, visit http://kb.netgear.com/app/answers/detail/a_id/11621.

Compliance

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

See the regulatory compliance document before connecting the power supply.

Trademarks

used for reference purposes only.

Contents

Chapter 1 Hardware and Internet Setup

Unpack Your Cable Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Product Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Back Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Install and Activate Your Cable Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Install Your Cable Modem and Connect It to a Computer. . . . . . . . . . . . . . . . . 8

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

Activate Your Internet Service With Comcast XFINITY . . . . . . . . . . . . . . . . . . 11

Perform a Speed Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Connect Your Cable Modem to a Router After Installation and Activation . . . 12

Chapter 2 Manage and Monitor

View Cable Modem Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

View Cable Modem Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

View and Clear Event Logs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Change the admin Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Reboot the Cable Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Reset the Cable Modem to Factory Default Settings . . . . . . . . . . . . . . . . . . . . . 20

Use the Reset Button on the Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Use the Factory reset Software Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Change the Cable Connection Starting Frequency . . . . . . . . . . . . . . . . . . . . . . . 22

Chapter 3 Troubleshooting

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

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

Troubleshoot the Cable Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Appendix A Technical Specifications

1. Hardware and Internet Setup

The NETGEAR High Speed Cable Modem provides a connection to high-speed cable Internet

with speeds up to 1 Gbps.1The cable modem is certified by all major cable Internet providers.A

Gigabit Ethernet port provides fast access and downloads. The cable modem supports the

assignment of IPv4 and IPv6 addresses by cable Internet providers.

This chapter covers the following topics:

•Unpack Your Cable Modem

•Front Panel

•Product Label

•Back Panel

•Install and Activate Your Cable Modem

•Connect Your Cable Modem to a Router After Installation and Activation

Note: For more information about the topics covered in this manual, visit the

support website at support.netgear.com.

1. Maximum rate is derived from DOCSIS 3.1/DOCSIS 3.0 specifications, limited by Ethernet port and actual throughput varies depending on your

Internet subscription with your provider.

Hardware and Internet Setup

High Speed Cable Modem

Unpack Your Cable Modem

Your package contains the following items.

Ethernet cable

Power adapter

Cable modem

Figure 1. Package contents

Front Panel

The cable modem provides status LEDs on the front.

Power LED

Downstream LED

Upstream LED

Internet LED

Ethernet LED

Figure 2. Cable modem front view

Hardware and Internet Setup

High Speed Cable Modem

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

describes each LED on the front panel of the cable modem.

Table 1. LED descriptions

LED Icon Description

Power • Green. Power is supplied to the cable modem.

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

• Red. The cable modem is too warm and might overheat. For more information

about this condition, see Use LEDs to Troubleshoot on page 25.

Downstream • 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.

Upstream • 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.

Internet • Solid green. The cable modem is online.

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

provider’s cable modem termination system (CMTS).

• Off. The cable modem is offline.

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

• Amber. A powered-on device is connected to the Ethernet port at 10/100 Mbps.

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

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

Product Label

The product label on the side of the cable modem displays the serial number and MAC

address of the cable modem and login information, including the default IP address, default

user name, and default password.

MAC address

Serial number

Figure 3. Product label

Hardware and Internet Setup

High Speed Cable Modem

Back Panel

The back panel provides the connections and button shown the following figure.

Power adapter input

LAN Gigabit Ethernet port

Coaxial cable connector

Reset button

Power On/Off button

Figure 4. Cable modem back panel

Hardware and Internet Setup

High Speed Cable Modem

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.

Install Your Cable Modem and Connect It to a Computer

During the installation and activation, you must connect the cable modem directly to a

computer.After installation and activation, you can connect the cable modem to a router (see

Connect Your Cable Modem to a Router After Installation and Activation on page 12).

Computer

Cable modem

Coaxial cable to

Ethernet

cable

Power adapter

cable outlet

Figure 5. Connect the cable modem directly to a computer

Note: Before you connect your cable modem and contact your cable Internet

provider, collect your cable account number, account phone number,

and login information (your email address or user name and password).

To install your cable modem and connect it directly to a computer:

1. Turn off 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 the coaxial cable that your cable company provided to connect the cable port on the

cable modem to a cable wall outlet or a line splitter. Make sure that the cable is tightly

connected.

Hardware and Internet Setup

High Speed Cable Modem

Note: If Comcast XFINITY is your cable Internet provider, Comcast XFINITY

recommends connecting your cable modem directly to a cable wall outlet.

3. Connect the power adapter provided in the package to the cable modem and plug the power

adapter into an electrical outlet.

When the startup procedure is completed, the Power LED lights green.

4. Wait for the cable modem to come online.

It takes at least 10 minutes for the cable modem to come online on the network. During

this time, the LED behavior is as follows:

•The Downstream LED lights amber when one downstream channel is locked.

•The Downstream LED lights green when more than one downstream channel is

locked.

•The Upstream LED lights amber when one upstream channel is locked.

•The Upstream LED lights green when more than one upstream channel is locked.

•After the cable modem registers with your cable Internet provider, the Internet LED

lights green.

5. Turn off the computer to which you intend to connect the cable modem.

6. Use the Ethernet cable provided in the package to connect the LAN port on the cable

modem to an Ethernet port on the computer.

7. Turn on the computer.

Even though an Internet connection is established, Internet service is available only after you

set it up with your cable Internet provider.

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

Service on page 10.

Hardware and Internet Setup

High Speed Cable Modem

Activate Your Internet Service

To activate your Internet service:

1. Visit your cable Internet provider’s website and follow the onscreen instructions to

activate your Internet service.

Cable Internet Provider Contact Information

Bright House Networks http://support.brighthouse.com

1-866-898-9101

Cablevision http://www.cablevision.com

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

Telephone number depends on your region.

Comcast XFINITY http://www.comcast.com/activate

http://www.XFINITY.com/internetsetup

http://www.XFINITY.com/internetsupport

1-800-XFINITY (1-800-934-6489)

For more information, see Activate Your Internet Service With Comcast

XFINITY on page 11.

Cox https://activation.cox.net/selfactivation/newmodem.cox

1-888-556-1193

Mediacom https://maestro.mediacomcc.com/walledgarden/page/login.jsp

1-844-2SIMPLE (1-844-274-6753)

Time Warner Cable https://www.timewarnercable.com/en/support/internet/step-by-step/modem-acti

vation.html

1-800-892-2253

Note: Your cable Internet provider’s contact information might change. You

can also find the contact information in your monthly Internet service

billing statement.

2. If you are unable to activate your Internet service using the instructions on your cable

Internet provider’s website, call your cable Internet provider and do the following:

a. When asked, provide your account information and provide the cable modem’s model

number, which is CM1000, serial number, and MAC address.

The serial number and MAC address are on the label on the cable modem, which is

on the bottom of the cable modem.

b. Wait for your cable Internet provider to confirm that your cable modem is active.

Note: When you attempt to contact Cablevision online, you are directed to the

Optimum web page. Optimum is a brand name of Cablevision.

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