NETGEAR CM500 Modem Product Details & Reviews

NETGEAR CM500 Modem Product Details & Reviews

The NETGEAR CM500 cable modem is ideal for XFINITY Blast and Extreme customers. However, it is compatible with almost every cable provider. The CM500 is for speed tiers mostly up to 300 Mbps. ​It is Cable Labs and DOCSIS 3.0 certified and is 16X faster than 2.0 devices.

NETGEAR CM500 Overviews

NETGEAR CM500 is another option for those looking for a new best buy modem at a mid-range price point. This modem can also be found on some ISPs such as Comcast Xfinity and Cox, so you might want to check for offers from your provider as well.

The cable modem has a built-in DOCSIS 3.0 cable modem with 8×4 channel bonding support up to 343 Mbps for 4K HD video streaming and faster downloads speed. This means that it can deliver download speeds of up to 1Gbps (you should not expect such speeds all the time).

NETGEAR CM500 is compatible with major U.S cable providers such as Cablevision/Optimum, Charter, Cox, Time Warner Cable, Mediacom, and others. You can use this device with Comcast Xfinity or any other service provider if your plan is 100 or higher for Internet access.

NETGEAR CM500 has four Gigabit Ethernet ports, so you can easily connect to the router with only one cable. There are also built-in wireless N600+AC dual-band antennas that help create a reliable WiFi connection for multiple devices in your home or office without any hassle. This modem supports both IPv4 and IPv6 addressing which gives you options when setting up your local network.

It is powered by DOCSIS 3.0 technology designed to help reduce downtime during power outages while ensuring high upload and download speeds. The cable modem features a built-in firewall, parental controls, Quality of Service (QoS) settings, robust security software to prevent hackers from stealing your information, and more.


Top Compatible Speed Tier 300 Mbps
WiFi (Modem Router Combo) NO
Channel Bonding 16×4
Voice eMTA NO
Year Released 2015


The CM500 is fairly small and compact, looking like most standard cable modems. The casing is white with blue indicator lights on each side of the unit’s front panel. The back of the modem features a coaxial cable connection and power adapter port for connecting to a nearby outlet; it also has an Ethernet port that can be connected to a router or computer.


Installation was fairly simple: after I connected my devices, I powered up the modem and connected directly to it via Ethernet from my PC to get started with configuring its settings. Upon opening a web browser, I arrived at the setup page where I inputted my Internet provider credentials such as user name and password so that the modem could connect to its network. I could have connected the modem to my router instead, allowing it to connect to multiple devices at once, but since I only had one device at the time, there was no need for me to go through the hassle of setting up a router. Overall, the installation was pretty easy and didn’t take long.


Once installed, using this modem requires you to open your web browser and visit its IP address ( in order to access the setup page where you can manage settings for this device; if you are unable to find this address on your own or want it written out for easier access later on, feel free to use mine as a reference here:

The setup page was fairly easy to use and understand, allowing me to manage my connection without any issues whatsoever; I could easily access information such as upload/download speeds and whether or not the modem is connected to its wireless network. If you want more in-depth information on using this piece of hardware, there is a link at the bottom of the main page that will take you to Netgear’s page for this product where they explain things in much greater detail than I can provide here.

Overall, setting up and using the CM500 modem has been very uneventful thus far: it connects quickly and reliably every time I power it up while providing great download speed when transferring files from one location to another. I am very happy with my purchase and would recommend others buy it if they plan on connecting multiple devices to the internet at once.

Internet Service Provider Compatibility List

You will find the NETGEAR CM500 compatible with the following Internet Providers.

  • Altice – Suddenlink / Optimum
  • Atlantic Broadband – ABB Modems
  • Comcast Business
  • Comcast XFINITY – XFINITY Modems
  • COX – Cox Modems
  • Grande Communications
  • Mediacom
  • Midcontinent Communications
  • Service Electric
  • Sparklight / Cable One
  • Spectrum (BHN, Charter, TWC)
  • Wave Broadband
  • WoW! – WideOpenWest
  • Zito Media

NETGEAR CM500 Manuals and Support

View manuals and guides for the CM500 below. Documents include Quick Start Guide, Full Manual, and Specs sheet. Topics include

Use LEDs to Troubleshoot
• Cannot Log In to the Cable Modem
• Troubleshoot the Cable Internet Connection



The Netgear CM500 modem is a great piece of hardware that gets the job done; I have no major complaints about this device, and it does exactly what I need it to do each time I use it. If you’re in the market for a new modem, this one will give you great results if your primary goal is connecting multiple devices to the internet at once while giving you easy access to its settings so that you can optimize your connection strength as needed. Also, if you have used this product before or are using one now, feel free to leave a comment below saying how you like or dislike it. Thanks for reading!

NETGEAR CM500 Resources, References, and Tools
Cox Setup & Activation
Sparklight Setup & Activation

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