Installation Guide

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Quick Start

High Speed Cable Modem

Model CM500

Package contents

Cable modem

Ethernet cable

Power adapter

BEFORE RETURNING THIS PRODUCT TO THE STORE

FOR ANY REASON, call NETGEAR Technical Support at

1-866-534-9377 or visit

https://kb.netgear.com/000061156/How-can-I-troubleshoot-my-cable-modem.

Cable modem LEDs

LED Description

Power

• Solid green. The cable modem is receiving power and is functioning

normally.

• Off. The cable modem is not receiving power.

• Solid red. The cable modem is too warm and might overheat.

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 a upstream channel.

• Off. No upstream channel is locked.

Online

• 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 ofine.

Ethernet

• Solid. A powered-on device is connected to this port.

• Blinking. The port is sending or receiving trafc.

• Off. No device is connected to this port.

non-NETGEAR trademarks are used for reference purposes only.

Visit netgear.com/support to get your questions answered and access the latest

downloads.

You can also check out our NETGEAR Community for helpful advice at

community.netgear.com.

Customer-owned cable devices might not be compatible with certain cable

networks. Check with your cable Internet provider to conrm that this NETGEAR

cable device is allowed on your cable network.

If you are experiencing trouble installing your cable modem, contact NETGEAR at

1-866-874-8924.

Support and Community

The following table lists support contact information for cable Internet providers

that support your cable modem.

Cable Internet

Provider

Support Contact Information

Cox https://www.cox.com/residential/support/home.html

https://www.cox.com/activate

1-888-556-1193

Mediacom

https://support.mediacomcable.com

1-855-Mediacom (1-855-633-4226)

Optimum https://www.optimum.net/support/contact-us

https://install.optimum.com/JointInstall

1-877-810-6750

Sparklight

https://support.sparklight.com

1-877-692-2253

Spectrum https://www.spectrum.net/contact-us

https://activate.spectrum.net

1-833-267-6094

Xnity

https://www.xnity.com/support/articles/activate-purchased-modem

http://xnity.com/activate

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

Summary of content (2 pages)

PAGE 1
Support and Community Cable modem LEDs Visit netgear.com/support to get your questions answered and access the latest downloads. LED Power • • Solid green. The cable modem is receiving power and is functioning normally. Off. The cable modem is not receiving power. Solid red. The cable modem is too warm and might overheat. • • • • 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.
PAGE 2
Start here After 10 minutes, if the Online LED doesn’t light solid, make sure that the cable outlet is working, or call your Internet service provider (ISP) to make sure you have service. 1. Turn off and disconnect existing modems and routers. Note: When the Online LED lights solid, your cable modem is not connected to the Internet yet. You must connect a router or computer to your cable modem, and then activate your cable modem with your cable Internet provider.