NETGEAR CM400 User manual

Installation
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.
Package Contents
2. Connect the power adapter.
Connect the power adapter to the
cable modem and plug the power
adapter into an electrical outlet.
The Power LED lights green. If the
Power LED does not light, press the
Power On/O button.
4. Log in to the cable modem.
Launch a web browser.
The cable modem menu displays.
If you do not see the cable modem menu, enter
http://192.168.100.1 in the address field of
the web browser.
When prompted, enter admin for the user name
and password for the password.
5. Set up your Internet service.
For information about how to set up
your Internet service, see the other side
of this installation guide.
3. Connect a computer to the
cable modem.
Use an Ethernet cable to connect a
computer to the Ethernet port on the
cable modem.
Cable Modem
Ethernet cable
Power adapter
Coaxial cable
(not included)
Power adapter
Cable modem
Ethernet cable
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April 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.
Information is subject to change without notice. © NETGEAR, Inc. All rights reserved.
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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-COMCAST (1-800-266-2278)
https://www.comcast.com/activate
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. Try checking 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.
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 this NETGEAR
cable modem is allowed on your cable network.
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