Netgear CM1000 DOCSIS 3.1 Ultra-High Speed Cable Modem

Netgear CM1000 DOCSIS 3.1 Ultra-High Speed Cable Modem

Netgear CM1000 DOCSIS 3.1 Ultra-High Speed Cable Modem

B&H # NECM1000100N MFR # CM1000-100NAS
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Netgear CM1000 DOCSIS 3.1 Ultra-High Speed Cable Modem

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Product Highlights

  • 1 x Gigabit Ethernet Port
  • 1 x Coaxial Connector
  • DOCSIS 3.0 & 3.1 Compatible
  • Up to 32 Downstream Channels
  • Up to 8 Upstream Channels
  • Works with XFINITY Cable Service
  • 128MB Flash / 256MB RAM Memory
  • Supports DOCSIS Quality of Service (QoS)
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Netgear CM1000 Overview

  • 1Description

Eliminate the monthly fees often associated with renting your cable modem from the cable company with the CM1000 DOCSIS 3.1 Ultra-High Speed Cable Modem from Netgear. The CM1000 comes compatible with Comcast cable Internet service and offers enhanced data transfer rates of up to 1 Gbps to support a variety of bandwidth intensive tasks such as streaming multimedia content, downloading large files, and more all at the same time. Installation is simple as this Netgear modem comes equipped with both a single Gigabit Ethernet port and a single coaxial connector. Once installed, users benefit from both DOCSIS 3.0 and DOCSIS 3.1 support offering multiple channels for a fast, reliable network connection. Additionally, Netgear has included in this router DOCSIS Quality of Service (QoS) functionality to ensure network resources are allocated to cover more bandwidth intensive tasks for a better overall online experience.

Up to 1 Gbps download speeds for streaming HD videos, faster downloads, and high-speed online gaming
32 downstream and 8 upstream channels for DOCSIS 3.0 connections
2 OFDM downstream and 2 OFDM upstream channels for DOCSIS 3.1 connections provide fast and reliable Internet access
Works with XFINITY from Comcast (not compatible with Cable bundled voice services)
Fast web based self-activation for XFINITY customers - Get connected without a service call
Gigabit Ethernet port - Fast wired speeds to connect this modem to your router or computer
Save money over time by owning your cable equipment and avoiding monthly rental charges from your Internet provider
UPC: 606449111071
In the Box
Netgear CM1000 DOCSIS 3.1 Ultra-High Speed Cable Modem
  • Ethernet Cable
  • Power Adapter
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Netgear CM1000 Specs

    Ethernet Ports 1 x Gigabit Ethernet auto-sensing port
    Transfer Rates Up to 1 Gbps download speeds
    Channels DOCSIS 3.1
    2 x OFDM downstream
    2 x OFDM upstream channels
    DOCSIS 3.0
    32 x downstream
    8 x upstream
    DOCSIS Support Up to DOCSIS 3.1
    Memory NAND Flash: 128 MB
    RAM: 256 MB
    QoS (Quality of Service) DOCSIS Quality of Service (QoS)
    IPv6 Support Yes
    System Requirements Comcast cable broadband Internet service

    Please check your cable Internet service provider web site for data speed tier compatibility and to ensure it provides DOCSIS 3.1 service, otherwise this modem will only work as a DOCSIS 3.0 modem

    Microsoft Windows 7, 8, 10, Vista, XP, 2000, Mac OS, or other operating systems running a TCP/IP network

    Microsoft Internet Explorer 5.0, Firefox 2.0, Safari 1.4, or Google Chrome 11.0 browsers or higher

    Not compatible with Cable bundled voice services
    Ports 1 x Gigabit LAN Ethernet port
    1 x WAN coaxial cable connection
    Dimensions 8.8 x 5.4 x 5.9" / 222.7 x 135.9 x 149.0 mm
    Weight 0.84 lb / 380 g
    Packaging Info
    Package Weight 2.45 lb
    Box Dimensions (LxWxH) 10.4 x 7.5 x 4.6"

    Netgear CM1000 Reviews

    CM1000 DOCSIS 3.1 Ultra-High Speed Cable Modem is rated 4.2 out of 5 by 22.
    Rated 5 out of 5 by from Must Have! I was told by Cox communications during a recent service ticket that my modem was old and DOCSIS 3.1 technology was now available in my local area. I decided to purchase a modem vs. leasing one. All I can say is Wow! What a huge difference it made in my download speed. Even my wireless network speed increased and when streaming I no longer have delays. It is instant! I am guaranteed 100Mbps but I am seeing 150 Mbps with this new modem. I highly recommend purchasing this modem and running a separate router.
    Date published: 2017-02-27
    Rated 5 out of 5 by from The Best Modem In 2018 I have this modem connected to a Nighthawk router and my speed is so fast that I finally feel like Im getting what I pay for.  All of my TVs stream video, and my network can be demanding at times and this modem steps up to the demand.  I never had issues like some have claimed.  I recycle my own system every Sunday morning before the entire house is up and everyone is on a device or TV.  But thats been my practice for years because every system should be rebooted from time to time. The added incentive is that Im not charged every month to rent the modem from the cable company.  If you need an upgrade that will last you the next two to three years.  This is it.
    Date published: 2018-11-27
    Rated 4 out of 5 by from Solid product I purchased the CM1000 to replace a rental modem I received from Comcast. I have traditionally used Arris SurfBoard modems, but they do not have a DOCSIS3.1 modem that supports my XFINITY Gig service. The product works as it should, and speeds are comparable to the rental unit. PROS * There is a small power button on the back * The system uses the same admin GUI that their routers (e.g. R7000, R8000, etc) use, though there are very few things to see within the interface. * The modem seems to boot much faster than the Arris SB6190, and all lights are green faster than the Technicolor modem I was renting. That said, the time required to get an actual working connection to the outside takes about the same length of time. CONS * The modem is physically larger than the Arris (almost 2X the size of the SB6141/6183/6190 modems) * It has a base that does not detach * The lack of color-changing LEDs means there is less information available from the device itself. My modem showed solid green lights, but my Router showed no internet connection. There is also no change in icon blink pattern/display that would show that the system is still booting or the connection is not fully active.
    Date published: 2017-01-30
    Rated 4 out of 5 by from Met my expectations. I expected to get faster download speeds and the Netgear CM1000 did that for me. Before and after tests using three different download sites, each performed within a few minutes of each other, showed about a 20 percent download speed increase, up to 170mbps, via a hard wired connection. Wireless download speeds did not show much change, but were still slightly better. The download increase happened while using my same old modem, Netgear WNDR4700. If I paid for a higher internet speed, I believer this device would likely deliver, though I can't prove that. Self-install process with Xfinity cable company was painless and worked the 1st time, with no phone call to them required.
    Date published: 2018-04-24
    Rated 5 out of 5 by from I would buy this product again! Works like its suppose to. Puts out great speeds more than what my cable company gives me.
    Date published: 2017-02-20
    Rated 5 out of 5 by from Much better than the Comcast Modem I bought this to move away from Comcasts' combined router and modem. Night and day difference. I would recommend this modem. Sure, it's more expensive, but with Docsis 3.1 compatibility, this modem should be relevant for quite some time.
    Date published: 2017-06-02
    Rated 5 out of 5 by from Future-Proof Pays for itself in 18 months and with DOCSIS 3.1 it'll handle current 1gbs xfinity plans and hopefully up to 6gbs in the future.
    Date published: 2017-06-02
    Rated 5 out of 5 by from Larger than the usual Xfinity modem This new model Netgear DOCSIS 3.1 was purchased to phase out a rented Comcast DOCSIS 3. All that was needed was to swap out the modems, and when the registration screen pops up when the modem boots, fill out an activation form. Easy. It is pricey for a modem but you get what you pay for. The Netgear modem is about twice the size of the Comcast modem, more like a router.
    Date published: 2017-01-25
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    Is this Modem compatible with Spectrum Internet?
    Asked by: EJ R.
    While the modem is technically compatible with Spectrum, it is not listed on their Authorized Devices list for the Spectrum network, and they do not recommend it.
    Answered by: Andrea O.
    Date published: 2019-01-03


    Will this modem with the new 1Gb service from Mediacom ?
    Asked by: Evan H.
    I don't know but I would be careful. It does not work with Sudden Link. I am going to have to return the replacement I was sent because Netgear support said the first one must have been faulty. It tries to connect but fails a final step on Sudden Link
    Answered by: Fred K.
    Date published: 2018-08-27


    will it work with rdn gigabit
    Asked by: Matt H.
    Yes this presently have cox GigaBlast service and it runs fantastic
    Answered by: JEFFREY M.
    Date published: 2018-08-27


    Is this Modem compatible with wow?
    Asked by: Keith W.
    Should be if they have Docsys 3.0 as this is backwards compatible. You should call and ask.
    Answered by: Ganesh P.
    Date published: 2018-08-27
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