NETGEAR CM500 Quick Start

Support and Community
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 confirm 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.
The following table lists support contact information for cable Internet providers
that support your cable modem.
Cable Internet Support Contact Information
Provider
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
Xfinity https://www.xfinity.com/support/articles/activate-purchased-modem
http://xfinity.com/activate
1-800-XFINITY (1-800-934-6489)
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 offline.
Ethernet • Solid. A powered-on device is connected to this port.
• Blinking. The port is sending or receiving traffic.
• Off. No device is connected to this port.
© NETGEAR, Inc., NETGEAR and the NETGEAR Logo are trademarks of NETGEAR, Inc. Any
non-NETGEAR trademarks are used for reference purposes only.
Quick Start
High Speed Cable Modem
Model CM500
Package contents
Ethernet cable
Power adapter
Cable modem
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.