NETGEAR CM400 user manual Install.charter.com

CM400 High Speed Cable Modem

Cable Internet Provider	Contact Information
Charter	1-888-438-2427
	install.charter.com
Comcast	1-800-COMCAST (1-800-266-2278)
	comcast.com/activate/
Cox	1-877-891-2899
	cox.com/residential/home.cox
Optimum	play.optimum.net
	optimum.net/support/phone-list
	Note: Optimum is a brand name of Cablevision.
Time Warner Cable	1-800-892-2253
	timewarnercable.com

Note: The contact information listed 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, which are on the product label (see Product Label on page 7).

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

4.If you do not get an Internet connection with the cable modem, ask your cable Internet provider to look for your cable modem online, and 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 computer, laptop, router, or WiFi router that is connected to the cable modem. Try checking your online status again.

Hardware and Internet Setup

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