Netgear CM1000-100NAS Product Details
The Netgear CM1000 is one of the newest editions to the DOCSIS 3.1 lineup from Netgear. It features 32×8 channel bonding which can support the speeds needed for most Gigabit plans from Comcast & other providers. The CM1000’s reliability and easy activation make this model one of the best options available for residential Gigabit plan customers. Own yours today & start saving on your monthly modem rental fees!
Netgear CM1000-100NAS Compatibility
The CM1000 is compatible with a huge number of US cable providers. This includes Comcast, Atlantic Broadband, Brighthouse, Charter, Cox, Mediacom, Sparklight (or CableOne), Spectrum, Time Warner Cable, Suddenlink, WOW! & other smaller providers. We always recommend calling your service provider before ordering, even if they’re listed here. Compatibility lists change periodically, plus your provider may not recommend this model for your specific service plan or region due to firmware.
Netgear CM1000-100NAS Speeds
This model is equipped with DOCSIS 3.1 technology, which supports speeds up to 1 Gbps for downloads. DOCSIS 3.1 builds on advances made with previous versions by adding more network stability, reliability and better speeds.
CM1000 Additional Features
This model was designed with you in mind! It comes already provisioned to allow you to activate it from home, without needing a technician to visit your home for the installation. Additionally, the CM1000’s Gigabit Ethernet port allows you to connect any wireless router to add WiFi to your home network, instantly. Stay connected, play online games, download large files, video chat your friends or collegues & more, all in seconds with the CM1000-100NAS!
What’s Included:
- Netgear CM1000-100NAS Cable Modem
- Ethernet Cable
- Power Supply Cable
- Online Installation Manual
Will this work with my internet company?
This Netgear modem is primarily used and is compatible with Mediacom, Atlantic Broadband, Brighthouse, Comcast, Cox, Sparklight/CableOne, Spectrum, Charter, & Time Warner service in most areas. To verify that this model will work in your area, always contact your service provider’s customer service prior to placing your order with us to confirm that this model will work with your service plan. Some service plan speeds may not be supported.
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Arris Routers
Jimg –
This cable modem was very easy to set up and works great! I have Comcast internet and got tired of paying the rental fees for their modem. I got Ooma for my home and purchased this as my cable modem since I no longer needed a voice modem. They both work great. I have the 200 Mbps service with Comcast. With their rental modem, I would only get ~80 Mbps max. I got 200 Mbps speeds as soon as I plugged this one in. I bough this with the DOCSIS 3.1, vs the 3.0, as I think it will stay relevant longer. I Highly recommend it!
MergAtroid –
Installed by calling cox communications support. They asked me plug everything in, turn the power on & report what the lights were doing. It took approx 90 seconds for all solid green lights except for the bottom ethernet light which blinks very quickly. Then it was done and I’m back up and running. Ookla Speedtest on cox.com consistently at 180+ on 150 service (previous ARRIS 6183 consistently around 125). 32 channels locked downstream and 4 locked upstream (only 4 available in my area). Firmware V2.01.14.
Keith1341 –
Called TWC to activate it this morning. The activation went through just as smoothly as it did with previous modems. I moved to this to get away from the SB6190 that I had. The SB6190 has the Puma 6 chipset, which is known to have issues.
Artemus –
Received this modem on a Friday and got up early on a Saturday to install it. I should have just slept in because it LITERALLY took me 5 minutes to connect!!!! I unplugged the Comcast modem/router, plugged in this monster, turned on the computer, followed the instructions, restarted the computer once and I was connected! The directions are so easy to follow that I didn’t even need to call Comcast. I did a speed test and found that my PING had dropped CONSIDERABLY!!!! I am VERY pleased with this product and I’m totally ready for DOCSIS 3.1 as well!!!!
Nate T –
Nothing to say. This modem is simply amazing but time will tell!! Fast blazing speeds!!!!
Craig S. –
I was able to connect easily to replace the old cable modem we leased from the cable company (RCN). Setup was easy a couple of days before the technician came to upgrade our service. Once there, he had to insert a “bridge” to allow multi-room TiVo functionality and read the Mac ID to the home office. (Prior to this step, we had WiFi, but it got better after this.)After he left, I realized we had 4k cable and TiVo, but no WiFi. Simple power cycling of all devices got us back in business. Enhanced speed and number of download “channels” means fewer WiFi problems. This CM500 is a cable modem, but paired with our Netgear N750 router, we’re very happy!
Christopher Shannon –
Setup was simple and this is my first modem purchase outside my ISP. Always been a fan of NETGEAR products. Happy to have a faster and more reliable experience. Great job guys!
Hongbin Yuan –
My internet speed is 400M package, but actually reached 480M，I am very satisfied.
TJ & Olivia –
We have Comcast, We’ve been spending about $20 for modem rent for 4-5 years. We knew if We a modem we would of saved lots of money. But, We had been very lazy about that. Imagine 4-5 years * $10-20 per month… it adds up so much. I tried to negotiate with Comcast to lower down the modem fee. But, of course they said no. I knew a way to negotiate but it was such as hassle. So I decided to get this modem. Long story short, I regret why I didn’t get a modem sooner! this modem is supported by Comcast and it’s very easy to install. It took me less than ten minutes. **** Remind you, If you have Comcast there are specific instructions to set it up. So please follow that instructions.The modem works well so far. Our internet speeds are where they are supposed to be.I used google speed test and I got 69.8 Mbps download, 5.95 Mbps upload. It’s 8.75 MB/s. So for us its about 3 MB/s faster than what we were getting before we got the Modem and the Router.I paired it with ASUS RT-AC66U B1 AC1750 Dual-Band WiFi Router, They work well with each other.
robochick –
I recently upgraded to COX gigablast and purchased my own modem, I first got a Motorola Surfboard that had DOCSIS 3.1 but was having stability issues with my live streams to youtube, so I sent that back and replaced it with this. Installing was a breeze got online with cox tech support text chat and gave them the serial number along MAC and they activated the modem. Plugged in the power, coax, Ethernet, and a few minutes later I was back online. I like how it will support link aggregation, lets just see if any routers get it anytime soon, along with cable provider support.If you find this review helpful please press the helpful button, thanks!
Keith Alan –
the cable modem does come with 4 ports and three are covered if they are not being used. Setup took a little time and I had to read the directions to get it working. Once it was setup, it works great. It is quite large for a modem, but having the extra ports is a huge bonus.
Matthew T. Weflen –
I was able to get this modem up and running with a call to register it with Comcast that took perhaps ten minutes. I am replacing an Arris Surfboard modem that was DOCSIS 3.0 compatible. That modem was fine, but our cable runs into our bedroom, to a dresser upon which the modem and router sit – and the Surfboard has very bright blue LED lights that were very intrusive at night. I had to cover it with a magazine, which is terrible for heat dissipation, and it was still too bright, because that modem’s white body leaked light all around.The Netgear Nighthawk CM1200 has comparatively very understated green LED lights, which do not shine in every direction (you can see pictured the lights on the front edge and some minor leakage on the side), and this this was nowhere near as intrusive at bedtime. I do not need to cover any of these lights with tape or barriers. I also really like the stand on the bottom of the modem – it does a much better job keeping the modem seated, even when a thick coaxial cable is attached (I had to wedge the Surfboard between the dresser and the wall).As far as performance, I have no complaints. The unit is DOCSIS 3.1 compatible, so should be more futureproof. I speed-tested 120mbps down and 12 up, which is exactly what we’re paying for. The speeds are also stable all day, and we seem to be able to stream video and do other data intensive PC tasks simultaneously. So let it suffice to say that this modem completely met my expectations.Overall, it is rather expensive for a modem, and that’s my main knock on it. But it provides solid, speedy performance, good, understated “dark night” lighting, and a good physical experience.
Tim –
NETGEAR Nighthawk Cable Modem CM1200First off, if you are gaming this is the modem to have. I was using the modem Cox gave me with its Gigablast, that modem had terrible lag. I was around 30-40 ms Ping and found out it was because of the puma chip that it used. The Netgear CM1200 uses the Broadcom chip. No my speedtest show less than 10 ms ping and smooth curves all the way through. This won’t make your internet speed faster but it can make websites feel more snappy. This also makes a huge difference while gaming.The setup was super easy. Netgear includes a sheet with the phone numbers to all of the cable companies tech support. I plugged it in, called Cox, and 2 minutes later it was good to go. I returned my Gigablast modem to the Cox store and no more rental fees.What I really love about this modem is that it supports 10Gbs. I only have 1Gbs available in my area and don’t know anyone with 10Gbs. This modem should last for a while before the Internet service providers go passed 10Gbs. It also has 4 outputs with line aggregation. I don’t need it yet but with my network getting filled up with home automation and home security devices, I can see using this to have multiple networks.10 Stars!
J.P. –
We have had mediacom for 3 years and have had horrible service. Every 2-3 days our internet goes out and we have to physically unplug the modem to reboot it. Mediacom said our modem isn’t renewing the IP address when it changes. They gave us another and it did the same thing. I ordered this modem and once we got it setup (we had to call mediacom and they activated it over the phone in 2 minutes) it worked great. I did a speed test before i changed and got 26mb download with the rented router. As soon as the new one was hooked up I got 96mb. I was amazed. We did go buy a router since this one doesn’t have wifi. It was easy to setup as long as you remember to clone one of your computers IP addresses in the settings. We have been very pleased with this modem and the speeds since upgrading.
Anthony Cannonier –
Why:I ordered this so I could save money on my internet bill, and later found out that I could have a modem that would allow me higher speed and reliability.Delivery:I ordered a new one but received a certified refurbished one. Asked for a replacement and a new one came free of charge. So that speedy service was a plus.Installation:I have spectrum as an ISP. The manual for the modem said that you have to connect the modem to a computer for it to do provisioning. I only have a MacBook Air, which does not have an ethernet port, so had to find an alternate way. On the install guide there is a website for different ISPs to activate your modem. the website on the card was outdated but quickly found an updated site. On the spectrum site it automatically did the provisioning in a about 5 minutes.Internet speed:After the complete install saw a difference in my speeds. I ran three speed tests. 1 of the router that came with the ISP and two after. The results are seen in the picture.Overall:Small footprint the design is simple and offers faster download due to having more downstream channels. I am happy with my purchase.
Ezequiel –
This is as best as you can get. Lots of channels for both downstream and upstreams. Make sure you use brand new and well branded coax cable. It stays online for a long time. No more online drops. Expensive but very worth it. Compared to the crap that Comcast rents you, you will get the value back after a year and a half. Definitely worth it for gaming and high speed internet.
Engel –
easy installationdynamic range of bandsmultiple utility
Jesse –
UPDATE 08/23/2019 – I got this modem because I wanted to upgrade my internet and just have my own modem. Well it seems that, according to the Spectrum tech, it wasn’t compatible with the speed that I was getting (400/20). While I have my suspicions about that, they don’t charge me for the modem anyway (at least here in LA), so I opted to go with their modem and return this one. It didn’t really give me any issues but that doesn’t account for its longevity. If you want peace of mind from the PUMA 6 chipset, go with something else, but in my short experience, I had no issues with it.Got it installed today, had a wee bit of trouble activating it, but was Spectrum’s fault. Once it was activated, it ran as expected. I pay for 100/12. I get 118.46/11.80. About one megabit faster than my usual of 117Mbps upI heard about the PUMA 6 debacle and how much it can cause a lot of latency. My modem happens to be a hardware version 2.0. not sure if that means that it’s not Puma 6, but I ran the online test (Google Puma 6 Test) and it seemed to be well within nominal ranges. So I might have lucked out and got a version that doesn’t have the PUMA 6 chipset. So, you may be rolling the dice here, since others report that they indeed received a unit that does use the PUMA 6 chipset. If you want to be sure, go to the test page and check, return it if it’s mostly red. Check my screenshot for reference.I’ll update as time goes on.
Brandon A. –
The CM1200 is a great modem for Xfinity’s fiber services. I consistently get 941-946 down and 42 up via Ookla and through their Xfinity Speed Test.Overall, I do highly recommend this modem if you plan to have 1-2Gbs services and not having to lease a company modem. I do have this modem connected to an ASUS RT-AC5300 for the household wireless connectivity; although the modem itself has 3 more additional lan ports (the fourth being occupied by the router) if you desire to connect directly to the modem or have it connect to other devices.I’ll update this review if anything changes in a future date, otherwise its adequate for fiber speeds.
bobalay –
I recently upgraded to Xfinity’s 1000/35mbps speed tier and bought the CM1150V to achieve those speeds. The voice port allows me to connect my landline and get rid of Xfinity’s phone modem I’ve been renting for years, saving me money. After a quick modem swap and activation, I began testing my internet speeds and consistently hitting over 950Mbps down 44Mbps up. So, ya, I’m happy, it not only looks good, it’s fast.
Kayla –
I bought this to replace my internet company’s modem (I have WOW internet and am charged a $10/month equipment rental)… unfortunately, I had to return it because I need to have a modem/wireless router combo so this did not work for me.
Leon Pauling –
The netgear CM1000 does work with Suddenlink. I’m using it right now.After finding out the rented arris cable modem/router we aren’t given the login/password to do things like disable the wifi , change wifi channels, or even do QoS, we put in this CM1000- contacted Suddenlink tech support, but didn’t give the specific model since they might have not have supported the swap since its DOCSIS 3.1 but backwards compatible to 3.0 After he did the MAC swap and swapped them out, the CM1000 worked like a champ. Note, in DFW, TX area, and have Gigabit service- which after swapping to the CM1000 the down/up load speed jumped to above 990M/50M, from around 780M/20M with the Cable Modem / router combo. If after a week soak I’ll post an update if things change- knock on wood.
M.L. –
The Nightgear Nighthawk CM1200 is a DOCSIS 3.1 cable modem capable of 2Gb speeds. That’s crazy fast! I only subscribe to Spectrum for 200mbs download speed internet, so that is all I could test for with this modem. The modem will, of course, only put out what you pay for. Lol. The download speeds were actually 199-203mbps.This modem is easy to install and I like that it is compatible with Spectrum. Just call Spectrum and tell them your installing a new modem. Read off the number on the modem and they will send a signal to you activating the modem. Pretty easy.Now, in our area, Spectrum actually provides a free modem with their service. The Spectrum supplied modem is also a DOCSIS 3.1 and I’ll be comparing the Netgear CM1200 to it. On both modems, internet wasn’t always perfect, especially if someone is playing video games while someone else is streaming a movie. It didn’t necessarily load slowly or anything, it would just briefly cut out, causing the game to lag. I believe this is likely an issue with our service and not the modem, but I thought I should still mention it.Movies and music stream perfectly fine and downloading files on the computer is fast.Overall, this is a great modem. The only issue I have, which is in no way an issue with the modem itself. We purchase internet and a phone line from Spectrum. This phone line also requires a modem to convert the cable sygnal into a phone sygnal. Unfortunately, the Netgear modem doesn’t include the phone modem like the Spectrum supplied modem does. So if I keep this modem hooked up, my home phone won’t work. I could go buy a separate phone modem, but then I’m spending more money, when Spectrum provides their modem for free. While the Netgear CM1200 is a great modem, I haven’t found any benefits over the free Spectrum modem.Summary:1. Modem is a DOCSIS 3.1 and is very fast.2. Just call cable provider for easy hook up.3. Does not have a built in phone modem like Spectrums does.4. Does not have built in wifi, but you can connect an external one through ethernet.5. Has (4) 1gig. ethernet outputs.6. My Spectrum provider provides a free DOCSIS 3.1 modem (with built in phone modem) for me to use for free with their service. Their modem is just as fast.
Lance Thebodeau –
Definitely improved download speed from the Xfinity supplied unit, paired with an asus AC5300 router this makes an outstanding home network. Purchased with 4 year replacement warranty for piece of mind. Once activated on the account it was immediately noticeable speed increase. Upload remains the same but I suspect that’s due to my service area not hardware
Customer –
Use it for my home wifi network. Works perfectly.
Jorge –
I have 0 complaints about this modem it works amazing, awesome looks , awesome performance, if you’re looking to buy a great modem this is it my friend
Mike44NH –
The Nighthawk was so easy to install and set up and pair with my Xfinity services. The range is incredible and it provides a superior TV picture. It paired with all of my devices – including two cell phones and Amazon Alexa – with ease. I am very happy I went with this Netgear Nighthawk!
cwaits –
Plugged in and connected to Cox cable. Setup instructions from Netgear walked me through setup with Cox Communications. Plugged in my Nighthawk Router and was in business. So far a strong and reliable connection. First time I have been able to take advantage of the advanced speeds I am receiving from Cox.
SW2 –
Amazing modem. Huge upgrade from the docsis 3.0 I had. I pay for 600down/25up through Comcast. This modem paired with the tplink ax6000 consistently gets me over 750+down. On occasion it breaks a gig!!! Screenshot is for 940. That’s hardwired btw. Well over what I pay for. Wifi is well over 300+ on a note 8. Sadly I don’t have any wifi 6 devices yet. Still faster than the docsis 3.0 was hardwired. I’m very impresses
DaPoppa1 –
This is a no brainer!!! Plug it in , and call your service provider, they will provision it, takes only a moment, BANG you are on. I have Comcast/Spectrum, non stop for 4 years. I do get the advertised speed plus about 10 percent. Forget the package deals your service provider offers with built in WIFI/HOT SPOTS..You are the hot spot, that lets others use your bandwidth, and choke your speed as they drive by. Good for them, bad for you. If you need WIFI get a separate WIFI Router usually with more features, and better security than what is provided by a cable company. Asus, Netgear, Linksys, all make good solid units…..Also get the new CAT 7 cables for all of your runs, and you will see better speeds as the signal is much cleaner with no cross talk, and less signal loss. Which means the system does not have to resend over and over. Use the Netgear HUB/unmanaged switch ( NETGEAR GS305 5-Port Gigabit Ethernet Home Switch | Desktop | Internet Splitter| Sturdy Metal | Fanless | Plug-and-Play | Unmanaged ) This will help keeping the speed up on all of your systems by handing off the load, and allowing it to help with the routing. A+++++ 473.44Mbps???VOTE thumbs UP IF YOU FOUND THIS HELPFUL
Jaime –
So I recently upgraded my xfinity internet to 175mbps but was informed that to get the best experience I would need to upgrade my modem to something with docsis 3.1. I had an old arris SB6121 that cost me $60 back when I had originally switched to xfinity and it was capped at around 172mbps. I was hesitant at first to shell out the $140 but leasing it for $13 a month is stupid so I bit the bullet. I plugged the new modem in and called customer service to register it and was online within minutes! I did a speed test and got over 200mbps. The customer service rep upgraded me to 275mbps and now i’m getting over 400mbps down. This has tremendously affected my home network and when gigabit becomes more affordable I have peace of mind knowing that this modem is ready.
Chris Plotzke –
Product is great; however, it was delivered just as is off the shelf, just clear cellophane, to an apartment doorstep shared by any number of other people…come on.
A. C. Brandon –
Bought this to replace a SB6141 that died and kept rebooting all the time. Hooked this up, called WOW, gave them the MAC and within 5 min I was up and running. Easily hitting my 100down/10up Mbps on Speedtest runs that my WOW tier should.
Eric N. –
Great modem on my 400Mbps Network! I had to get a replacement from a big box store as the one I ordered here would not work on my Spectrum Account, (If you look on the box it will not be compatible with Spectrum and no logo also. I went on Spectrum’s List of Compatible Modem and for the CM1000 it has to be Version 2! The one I purchased locally did in fact show Spectrum’s Logo right on the box. I installed and it connected to Spectrum’s Network right away and great speed (See photo from SpeedTest App) It is a great High Speed Modem for over 400Mbps!
Pratik Shrestha –
It is very easy to install as most modems are, and should be. This is a modem, and will need a router to go along with it. The biggest advantage is that it is docsis 3.1. I combo’d it with nighthawk ax12. Spent around 700 for the complete set up. Visually Netgear app could use an update as not all functionality can be done directly through the app. Visually it’s not the most appealing, and not something I would want someone to see in the book shelf compared to the impressive visually appealing Netgear router. The worst design is the outlet which takes two spaces if you connect it to the wall, or power strip. The router also has the same outlet design with it taking two outlet spaces. I had to connect both to power strip, and they’re taking over two spaces each together. I know I’m being picky over something small, but it’s a flaw that most modems do not have.
GadgetGuy –
This modem is fast! I was getting 235Mbs with my old modem and now I’m getting speeds of 600 Mbs. I am really happy with my purchase and new data speeds. I was up and running with 10 minutes from the time I got my package from the front door to testing my internet speed. I highly recommend this Netgear modem.
Customer –
Great and easy to use
Jamey –
04-JAN-2020My low-voltage network is not very complex. Since I use Google Mesh Wifi devices I did not need a cable modem with a Wifi radio so the CM-700 fit the bill. Also, I am paying Xfinity for 200 Mbs and the CM-700 is rated for 500 Mbs so another reason why the CM-700 worked for me. BTW – speed tests reveal that I am constantly getting 239 Mbs so there does not appear to be any loss in my system.I rated the CM-700 with 5 stars on Wifi signal not becuase it has a signal, because it doesn’t, but because it supports my Google Mesh Wifi Points very well. I also rated it 5 stars on Tech Support because setup was so easy I did not need support.The attached photo is my low-voltage network layout.I have been using this system for 6 months and have had zero issues. I have never had one reset or hiccup.
VB DB –
It’s the Strongest Modem I’ve found. Works great. You still have to buy a Router also if you want Wifi.
Matata8 –
This is a brilliant modem. It was very easy to install and it is working great.
Customer –
so far its working at plan. easy to set it up.
C. B. Martin –
Had it for a year no issues and fast loading timesNever any real buffering
Joseph Cintron –
Installation was fairly easy, while there is online activation it doesn’t seem to work for spectrum. After a failed attempt I called the number on the quick start guide (*note* I called the number on the site but it was an automated system that failed to activate it so make sure to call the number on the guide to avoid a small headache) and without any confusion had it activated and working in 15 minutes. Now as for speeds I had it connected to my computer for immediate testing, I performed three tests in three different sites; fast.com, speedtest ookla, and google speedtest. On average I received a result of 470 Mbps, I pay spectrum for 400Mpbs. Sadly that was the last of the good news. After the testing I promptly moved the modem downstairs to its rightful place aside the router, and the signal drops began. After booting it for the first time with my router connected everything seemed fine until about 13 minutes later I noticed my connection was gone on my computer, I walked over to the modem and saw that it had lost connection to the isp. After this I kept my eye on the clock and almost every 13 minutes it would drop the signal and 2 minutes later it would come back. It did this about ten times in a row. Luckily after this I decided to ignore the drops and hope that it was just temporary, after that it dropped signal after 30 ish minutes and later would stay online for another hour and a half. I haven’t noticed any more drops since that night.Moral of this story is; it’s a good modem but do keep in mind the one and two star reviews as they probably are a possible outcome you could get after buying this modem. I bought it used as the price difference was over 100 dollars and honestly expected it to be dead on arrival, so if you have the chance buy used since you can just return or replace if it doesn’t work
George Efremidis –
It’s only been one day but I really like this so far. I have Xfinity and did a self activation but I still had to call. No problem. The entire process took only 15 mins I married this to my Google Nest Wifi and what can I say.. It just works. The reason for the 4 stars instead of 5 is the lack of the other 4 ports which you can’t use now. Waiting for the firmware update.
David –
It works. Easy to set up. Fit Comcast service: You can setup the internet via the online web she but you must call to get vice service working.
Binaldo Montenegro Jr. –
Netgear tech support is lousy. The bright side is you won’t need them.
Sanan –
No like or dislike. It’s doing its duty. Was looking for modem for a long time. Happy saving some amount from internet provider.
Igor –
Bought this modem to replays Optimum’s Arris and save $10/month. The set up was very easy, and it took only 20min. I am very satisfied with the performance. The internet speed is over 300 mbs. Recommend everyone who got Optimum 300 plan.
Andrew Tran –
I recently moved to an area with cable ISPs only (no more Fios for me) so I begrudgingly looked for a good cable modem to add to my networking equipment. Since I was getting Gigabit with RCN, I had to have a 32×8 DOCSIS 3.1 modem, and the issue with PUMA 6 chipset make it so that the choices are rather limited. I bought the CM1000 when it was on sale for about $100. So far after running it for 2 months I must say it definitely works very well. My connection is stable, and I do get the full speeds I’m paying for. I’d definitely recommend pairing this with a good router. Your ISP’s modem+router combo boxes can’t compete with a high performing modem and router setup.
SH –
Went from 118mbit to 907 by upgrading to this modem