NETGEAR CM400 Manuel utilisateur

Installation

High Speed Cable Modem

Model CM400

1. Connect a coaxial cable.

Use a coaxial cable that is provided by your

cable company to connect the cable port on

the cable modem to a cable wall outlet or a

line splitter.

Note: If Charter is your cable Internet

provider, Charter recommends connecting

your cable modem directly to a cable wall

outlet. If you must use a splitter, use a

splitter that is rated at 3.5 dBmv.

Note: If Comcast Xﬁnity is your cable

Internet provider, Comcast Xﬁnity

recommends connecting your cable modem

directly to a cable wall outlet.

Package Contents

2. Connect the power adapter.

Connect the power adapter to the

cable modem and plug the power adapter

into an electrical outlet.

Wait for the Power LED to light green.

4. Wait for the cable modem to come

online.

It takes at least 15 minutes for the

cable modem to come online on the

network.

Aer the cable modem registers with your

cable Internet service provider, the Internet

LED lights green.

5. Set up your Internet service.

For information about how to set up your Internet service, see the other side of this

installation guide.

Note: If Comcast Xﬁnity is your cable Internet provider, do the following:

Launch a web browser. You are redirected to the Xﬁnity self-activation page. If you are

not redirected to the Xﬁnity self-activation page, go to

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

You must provide your Xﬁnity credentials during the activation process, so make sure that

your account number, account phone number, email address, and password are nearby.

If you are unable to self-activate your cable modem, call Comcast Xﬁnity customer

service at 1-800-XFINITY (1-800-934-6489).

3. Connect a computer to the

cable modem.

Use an Ethernet cable to connect a

computer to the Ethernet port on the

cable modem.

Power on your computer.

Cable modem

Ethernet cable Power adapter

Coaxial cable

(not included)

Power adapter

Cable modem

Ethernet cable

Attachable feet

August 2014

NETGEAR, Inc.

350 East Plumeria Drive

San Jose, CA 95134, USA

NETGEAR, the NETGEAR logo, and Connect with Innovation are trademarks and/or registered

trademarks of NETGEAR, Inc. and/or its subsidiaries in the United States and/or other countries.

Set Up Your Internet Service

1. Contact your cable Internet provider and inform them that you are

installing a new cable modem that you bought from a retail store.

Provide your cable Internet provider with the cable modem’s model

number, which is CM400.

Note: The cable modem is certiﬁed by all major cable Internet

providers.

You can also visit your cable Internet provider’s website and follow the

onscreen instructions to set up your Internet service.

Cable Internet Provider Contact Information

Cablevision www.cablevision.com

www.optimum.com/contactus.jsp

Charter 1-888-438-2427

https://install.charter.com

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

http://www.comcast.com/activate

For information about Xﬁnity, see the other side of this

installation guide.

Cox 1-877-891-2899

www.cox.com

Optimum http://play.optimum.net

https://www.optimum.net/support/phone-list

Time Warner Cable 1-800-892-2253

http://www.timewarnercable.com

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

You can also ﬁnd the contact number in your monthly Internet service

billing statement.

2. When asked, provide the cable modem’s serial number and MAC

address on the product label.

3. Wait for your cable Internet provider to conﬁrm that your cable modem

is active.

4. If you do not have an Internet connection with the cable modem, ask

your cable Internet provider to look for your cable modem online, then

do one of the following depending on what your cable Internet provider

tells you about your cable modem:

• If the cable modem is not visible, your cable Internet provider can

give you instructions to verify why the cable modem does not

connect with your high-speed Internet service.

• If the cable modem is visible to your cable Internet provider, reboot

the cable modem. Check your online status again.

Support

Thank you for purchasing this NETGEAR product. Aer installing your device,

locate the serial number on the label of your product and use it to register your

product at https://my.netgear.com.

You must register your product before you can use NETGEAR telephone

support. NETGEAR recommends registering your product through the NETGEAR

website.

For product updates and web support, visit

http://support.netgear.com. NETGEAR recommends that you use only the

ocial NETGEAR support resources.

You can get the user manual online at http://downloadcenter.netgear.com or

through a link in the product’s user interface.

For regulatory compliance information, visit

http://www.netgear.com/about/regulatory/.

See the regulatory compliance document before connecting the power supply.

Customer-owned cable modems might not be compatible with certain

cable networks. Check with your cable Internet provider to conﬁrm that this

NETGEAR cable modem is allowed on your cable network.

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