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NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 | 24x8

4.5 out of 5 stars 2,612

$110.00 with 15 percent savings
List Price: $129.99

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Purchase options and add-ons

Brand NETGEAR
Internet service provider Xfinity, Cox, Spectrum
Compatible Devices Router
Product Dimensions 8.47"L x 3.78"W x 9.97"H
Total Ethernet Ports 2

About this item

  • Compatible with Comcast Xfinity, Time Warner Cable, Charter, Cox, Cablevision, and more. Requires Cable Internet Service
  • Not compatible with: Verizon, AT&T, or CenturyLink
  • Cable Modem only (no WiFi router).Memory: 8 MB NOR flash and 128 MB RAM
  • Support Cable Internet Service plans up to 300Mbps. Recommended for all speed tiers up to 500 Mbps. Separate router required for WiFi. 24x8 channel bonding
  • DOCSIS 3.0 Cable Modem with 1 Gigabit Ethernet port. DOCSIS 3.0 unleashes 8x faster download speeds than DOCSIS 2.0
  • Ideal for streaming 4K UHD content, fastest downloads, and high-speed online gaming

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NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 | 24x8
NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 | 24x8
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NETGEAR Cable Modem CM600 - Compatible with All Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 (Renewed)
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Price-15% $110.00
List:$129.99
-10% $197.99
List:$219.99
-15% $111.29
Typical:$130.70
$189.99-5% $57.19
List:$59.99
-17% $90.95
New Price:$110.00
Delivery
Get it as soon as Monday, Apr 22
Get it as soon as Monday, Apr 22
Get it as soon as Monday, Apr 22
Get it as soon as Tuesday, Apr 23
Customer Ratings
Easy to install
4.3
4.2
4.5
4.4
4.3
4.7
WiFi signal
3.9
3.7
4.0
4.1
3.9
3.7
Tech Support
3.4
3.2
3.8
3.7
3.7
3.5
Durability
2.6
4.3
4.3
4.2
Easy to use
3.7
4.6
4.5
Sold By
kino rv
Verdi!
cnc.online.store
Rustic Wholesale
Abe's Electronics Center
NewLife Electronic Deals
connectivity tech
Ethernet
wireless
Ethernet, Wi-Fi
Wired
Ethernet, Wi-Fi
ethernet ports
2
2
3
2
1
1
number of ports
1
2
1
8
1
data transfer rate
960 megabits per second
2500 megabits per second
500 megabits per second
300 megabits per second
680 megabits per second
400 megabits per second
max downstream rate
1029 megabits per second
2500 megabits per second
1.4 gigabits per second
1 gigabits per second
343 megabits per second
960 megabits per second
max upstream rate
246 megabits per second
2.5 gigabits per second
1.4 gigabits per second
123 megabits per second

Product Description

Up to 960 Mbps download for streaming HD videos, faster downloads & high speed online gaming

Product guides and documents


From the manufacturer

cm600 high speed cable modem
Why Buy Your Own Modem?

Why Buy Your Own Modem?

Save up to 168 Dollars/year

Eliminates monthly rental fees that can amount to 168 dollars or more per year.

No WiFi limits

You’re free to choose & connect the best router for your home’s WiFi needs.

compatability

Compatibility

Swap modems. Not problems. CM600 is compatible with all major cable providers including Xfinity by Comcast, Spectrum, and COX.*

*Not compatible with Verizon, AT&T, CenturyLink, DSL providers, DirecTV, DISH and any bundled voice services.

speed

Works with Any Wi-Fi Router

easy 5 minute setup

Built for Serious Speed

Supports cable internet plans with speeds up to 400Mbps ensuring fast, reliable internet speed for HD streaming and more.

Works with Any Wi-Fi Router

Plug the modem into the router that best meets your wireless needs and start streaming.

Easy 5 Minute Setup

Step 1: Plug your coax cable into the modem.

Step 2: Activate by either

(a) connect an Ethernet cable to your computer and follow the on-screen setup, or

(b) call your cable provider to activate over the phone.

Step 3: Plug an ethernet cable between the modem and your Wi-Fi router.

Looking for specific info?

Product information

Technical Details

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Additional Information

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
Product Warranty: For warranty information about this product, please click here. [PDF ]

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NETGEAR

NETGEAR Cable Modem CM600 - Compatible with Cable Providers Including Xfinity by Comcast, Spectrum, Cox | for Cable Plans Up to 400 Mbps | DOCSIS 3.0 | 24x8


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
2,612 global ratings

Customers say

Customers like the performance, speed, and ease of setup of the modem. They mention that it works well, has good speed, is ready for future enhancements in internet speed, has simple instructions, and is a high quality modem that is dependable. Customers appreciate the value, and appearance of the product. That said, opinions are mixed on connectivity, and temperature.

AI-generated from the text of customer reviews

324 customers mention274 positive50 negative

Customers like the performance of the modem. They say it works well most of the time, and has no problems. Some mention it's an excellent performer and that it'll be wonderful to set up.

"...Quick, easy setup...it is super-fast, simple, and helps deliver on a whole-home experience!..." Read more

"...It really is that good, on all fronts, including appearance, performance, features, ergonomics, and design.Kudos to Netgear...." Read more

"...For the most part it works very well still, but it is no longer an approved modem by Comcast/Xfinity, so you would not longer be able to activate it..." Read more

"...However, what I do know is when something works, and it works correctly. I don't have crazy high speed internet at my home because it isn't offered...." Read more

192 customers mention175 positive17 negative

Customers are satisfied with the speed of the modem. They mention that it works very fast, has no lagging, and is ready for future enhancements in internet speed. They also appreciate the 24x8 channel and the high speed ceiling for future needs. Some say that the mode is quick and easy to setup.

"High quality, does exactly what it claims to do. Quick, easy setup...it is super-fast, simple, and helps deliver on a whole-home experience!..." Read more

"...-Very noticeable speed increase from Comcast Modem-Install went quickly...." Read more

"...I've done a few tests throughout the day and my speeds have stayed identical through out the day...." Read more

"...Fast speeds (even faster than what I'm paying for), stable connection, etc...." Read more

179 customers mention171 positive8 negative

Customers find the setup of the modem to be very easy. They mention that the instructions are pretty good, the setup is straight forward, and the device is uncomplicated. They also say that the device connects easily and performs great.

"...We paired it with a new Tenda WiFi router which is dual band, has a great interface (1 Gigabit ports and a USB for thumb-drive file sharing), the..." Read more

"...-Very noticeable speed increase from Comcast Modem-Install went quickly...." Read more

"...I was so pleased in the setup process and couldn't be any happier...." Read more

"...The install was straight forward and was pretty uncomplicated...." Read more

172 customers mention127 positive45 negative

Customers like the quality of the modem. For example, they mention it's a high quality modem, dependable, and solid. Some say it'll go strong with gaming, HD streams, and 4K streaming. Overall, most are satisfied with the product's quality and reliability.

"...the connection is strong, consistent, super-fast and reliable for the 14 devices (TVs, computers, phones, printer, iPad, Kindle, bluetooths) that..." Read more

"...and matches the color of their routers which are also of high overall quality. I also have a Netgear Nighthawk R7000 router hooked into this modem...." Read more

"...For the most part it works very well still, but it is no longer an approved modem by Comcast/Xfinity, so you would not longer be able to activate it..." Read more

"...satisfied with my purchase and the R7000 Nighthawk is also an extremely good router that won't break the bank...." Read more

71 customers mention58 positive13 negative

Customers like the value of the modem. For example, they say it's worth the 109 dollars, saves them a few dollars a month, and pays for itself in six months. Some mention it'll save them money from comcast.

"...I think this is a good value for the money." Read more

"...Again, worth every penny.Would give a 5th star, but this thing gets super hot...." Read more

"...Great value, and so far, excellent performance.UPDATE - Two months later, this modem remains an absolutely excellent performer...." Read more

"...Better speed and no monthly rental." Read more

22 customers mention19 positive3 negative

Customers like the appearance of the modem. They say it looks really good, nice, and modern. They also appreciate the multi-color LEDs and find it impressive and highly recommended.

"...Additionally, this new Netgear modem is also much more elegant looking, and matches the color of their routers which are also of high overall quality..." Read more

"...(The sleek, high tech look with a lot of venting is nice, too)." Read more

"This is a very cool modem designed with the future in mind! Right now, my provider only serves a guaranteed 75 MB down and 10 up...." Read more

"...It’s a larger form factor than the standard Motorola but it looks really good and so far has had a very stable signal. Used with Xfinity internet." Read more

114 customers mention59 positive55 negative

Customers are mixed about the connectivity of the modem. Some mention that they haven't had any connection issues with the modemat, and the connection is strong, consistent, and super-fast. However, others say that they got lights, but no connection.

"...paired the Netgear CM600 with a Tenda AC10U WiFi router...the connection is strong, consistent, super-fast and reliable for the 14 devices..." Read more

"...and problems I have just had with the Arris SB6183 modem; its constant disconnects, its rather cheap look and feel, its lack of certain features,..." Read more

"...Adding even more devices is done so with ease and does not congest my network...." Read more

"...The switch wasn't receiving an internet connection until I rebooted everything in the right order...." Read more

27 customers mention13 positive14 negative

Customers have mixed opinions about the temperature of the modem. Some mention that it's not overheating, gets warm to the touch, and runs cooler than the average modem, while others say that it runs a bit warm and the manual indicates that it overheats.

"...So I got a new replacement. There is no longer an overheating issue as far as I could tell. The unit also runs a lot cooler than the defective one...." Read more

"...Cons:-My one and only major concern is how HOT it gets...." Read more

"...Temperature:This modem stays cool all the time, which is surprising because it can handle incredibly more download and upload speeds than my..." Read more

"...It does feel warm to the touch on the top of the unit, but it's not burning hot...." Read more

Solid, Fast! Ideal for Streaming Content!
5 Stars
Solid, Fast! Ideal for Streaming Content!
High quality, does exactly what it claims to do. Quick, easy setup...it is super-fast, simple, and helps deliver on a whole-home experience! Ideal for streaming content and easily handles ISP plans up to 300 mbps. We paired it with a new Tenda WiFi router which is dual band, has a great interface (1 Gigabit ports and a USB for thumb-drive file sharing), the wireless data rates are high (300 mbps + 867 mbps) and the frequency per second is high. All of those mixed together combine for a recipe of speed and reliability, with no disruption throughout our home. As a buyer, I do take on the responsibility to read and cross-reference...I don't expect everything to be spoon-fed to me...especially on tech which is constantly changing to meet changing consumer needs for better, faster, reliable performance. Netgear did a good job laying out the critical performance-related details and product features...simple to read and follow. My husband left this purchase up to me (upgraded cable modem, separate from an upgraded WiFi router). I took the time to educate myself and learn because our cable, streaming, and internet needs are rigorous and high (especially since we WFH-Work-from-Home 100% of the time given the pandemic protocols, etc) and we have high standards for performance results given the work that we do and the tv entertainment and streaming that we do. I read the details of Netgear's product offering and guarantees (along with numerous other brands and models with various price-points), and I read hundreds of reviews. Then I leaned in on the best choice for our home. Ultimately though...as with all cable and internet-related products and services...you have to give it a test-drive with YOUR unique setup and circumstances for the usage and performance YOU need at YOUR home...including YOUR modem...it is absolutely critical to pair the cable modem with a compatible WiFi router that has the right high-speed, bandwidth, download speeds, etc...as you get better flexibility when the modem is separate from your WiFi router. Overall performance considerations: YOUR ISP home location, coverage and service speed...inside YOUR home with YOUR devices, with the type of whole-home coverage you need, and the number of devices you need connected simultaneously at any given time. For us, we paired the Netgear CM600 with a Tenda AC10U WiFi router...the connection is strong, consistent, super-fast and reliable for the 14 devices (TVs, computers, phones, printer, iPad, Kindle, bluetooths) that we have connected 24/7 right now. At times it will be more devices. It can have up to 30 devices connected at one time for super-fast speed. Along with a 4+ STAR rating, a great interface, and a 1 year warranty (wish it was longer, at least 2-3 Years), the price investment makes it an incredible "and-then-some" buy! I happened to order at the right supply-and-demand time...saved 46%, or $60 on the new Netgear modem (5 days later it went up 20%, although it is still priced at a 28% savings). I did notice it is no longer available to purchase directly on Netgear's website...don't know if that is indicative of it being discontinued. Either way, it is a solid piece of technology with great, high-quality performance. With the upgrade to our separate Modem/WiFi setup, it pays for itself on a break-even basis in less than 5 to 8 months and I save $168 to $300 each year by NOT renting the equipment (which is not as high-performing) from my ISP company. Great investment all around! I took the time to write a more detailed review...in hopes that it will help someone else like me trying to evaluate all of the critical details like I was "forced " to do. 😁
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Top reviews from the United States

Reviewed in the United States on July 26, 2020
High quality, does exactly what it claims to do. Quick, easy setup...it is super-fast, simple, and helps deliver on a whole-home experience! Ideal for streaming content and easily handles ISP plans up to 300 mbps. We paired it with a new Tenda WiFi router which is dual band, has a great interface (1 Gigabit ports and a USB for thumb-drive file sharing), the wireless data rates are high (300 mbps + 867 mbps) and the frequency per second is high. All of those mixed together combine for a recipe of speed and reliability, with no disruption throughout our home. As a buyer, I do take on the responsibility to read and cross-reference...I don't expect everything to be spoon-fed to me...especially on tech which is constantly changing to meet changing consumer needs for better, faster, reliable performance. Netgear did a good job laying out the critical performance-related details and product features...simple to read and follow. My husband left this purchase up to me (upgraded cable modem, separate from an upgraded WiFi router). I took the time to educate myself and learn because our cable, streaming, and internet needs are rigorous and high (especially since we WFH-Work-from-Home 100% of the time given the pandemic protocols, etc) and we have high standards for performance results given the work that we do and the tv entertainment and streaming that we do. I read the details of Netgear's product offering and guarantees (along with numerous other brands and models with various price-points), and I read hundreds of reviews. Then I leaned in on the best choice for our home. Ultimately though...as with all cable and internet-related products and services...you have to give it a test-drive with YOUR unique setup and circumstances for the usage and performance YOU need at YOUR home...including YOUR modem...it is absolutely critical to pair the cable modem with a compatible WiFi router that has the right high-speed, bandwidth, download speeds, etc...as you get better flexibility when the modem is separate from your WiFi router. Overall performance considerations: YOUR ISP home location, coverage and service speed...inside YOUR home with YOUR devices, with the type of whole-home coverage you need, and the number of devices you need connected simultaneously at any given time. For us, we paired the Netgear CM600 with a Tenda AC10U WiFi router...the connection is strong, consistent, super-fast and reliable for the 14 devices (TVs, computers, phones, printer, iPad, Kindle, bluetooths) that we have connected 24/7 right now. At times it will be more devices. It can have up to 30 devices connected at one time for super-fast speed. Along with a 4+ STAR rating, a great interface, and a 1 year warranty (wish it was longer, at least 2-3 Years), the price investment makes it an incredible "and-then-some" buy! I happened to order at the right supply-and-demand time...saved 46%, or $60 on the new Netgear modem (5 days later it went up 20%, although it is still priced at a 28% savings). I did notice it is no longer available to purchase directly on Netgear's website...don't know if that is indicative of it being discontinued. Either way, it is a solid piece of technology with great, high-quality performance. With the upgrade to our separate Modem/WiFi setup, it pays for itself on a break-even basis in less than 5 to 8 months and I save $168 to $300 each year by NOT renting the equipment (which is not as high-performing) from my ISP company. Great investment all around! I took the time to write a more detailed review...in hopes that it will help someone else like me trying to evaluate all of the critical details like I was "forced " to do. 😁
Customer image
5.0 out of 5 stars Solid, Fast! Ideal for Streaming Content!
Reviewed in the United States on July 26, 2020
High quality, does exactly what it claims to do. Quick, easy setup...it is super-fast, simple, and helps deliver on a whole-home experience! Ideal for streaming content and easily handles ISP plans up to 300 mbps. We paired it with a new Tenda WiFi router which is dual band, has a great interface (1 Gigabit ports and a USB for thumb-drive file sharing), the wireless data rates are high (300 mbps + 867 mbps) and the frequency per second is high. All of those mixed together combine for a recipe of speed and reliability, with no disruption throughout our home. As a buyer, I do take on the responsibility to read and cross-reference...I don't expect everything to be spoon-fed to me...especially on tech which is constantly changing to meet changing consumer needs for better, faster, reliable performance. Netgear did a good job laying out the critical performance-related details and product features...simple to read and follow. My husband left this purchase up to me (upgraded cable modem, separate from an upgraded WiFi router). I took the time to educate myself and learn because our cable, streaming, and internet needs are rigorous and high (especially since we WFH-Work-from-Home 100% of the time given the pandemic protocols, etc) and we have high standards for performance results given the work that we do and the tv entertainment and streaming that we do. I read the details of Netgear's product offering and guarantees (along with numerous other brands and models with various price-points), and I read hundreds of reviews. Then I leaned in on the best choice for our home. Ultimately though...as with all cable and internet-related products and services...you have to give it a test-drive with YOUR unique setup and circumstances for the usage and performance YOU need at YOUR home...including YOUR modem...it is absolutely critical to pair the cable modem with a compatible WiFi router that has the right high-speed, bandwidth, download speeds, etc...as you get better flexibility when the modem is separate from your WiFi router. Overall performance considerations: YOUR ISP home location, coverage and service speed...inside YOUR home with YOUR devices, with the type of whole-home coverage you need, and the number of devices you need connected simultaneously at any given time. For us, we paired the Netgear CM600 with a Tenda AC10U WiFi router...the connection is strong, consistent, super-fast and reliable for the 14 devices (TVs, computers, phones, printer, iPad, Kindle, bluetooths) that we have connected 24/7 right now. At times it will be more devices. It can have up to 30 devices connected at one time for super-fast speed. Along with a 4+ STAR rating, a great interface, and a 1 year warranty (wish it was longer, at least 2-3 Years), the price investment makes it an incredible "and-then-some" buy! I happened to order at the right supply-and-demand time...saved 46%, or $60 on the new Netgear modem (5 days later it went up 20%, although it is still priced at a 28% savings). I did notice it is no longer available to purchase directly on Netgear's website...don't know if that is indicative of it being discontinued. Either way, it is a solid piece of technology with great, high-quality performance. With the upgrade to our separate Modem/WiFi setup, it pays for itself on a break-even basis in less than 5 to 8 months and I save $168 to $300 each year by NOT renting the equipment (which is not as high-performing) from my ISP company. Great investment all around! I took the time to write a more detailed review...in hopes that it will help someone else like me trying to evaluate all of the critical details like I was "forced " to do. 😁
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26 people found this helpful
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Reviewed in the United States on October 31, 2015
This new DOCSIS 3.0 modem by Netgear was just recently released. It has 24 downstream and 8 upstream channels for up to 960 Mbps of download speed, and a little over 200 Mbps of upload speed. I had just purchased an Arris SB6183 about 2 weeks earlier to upgrade my older Motorola SB6120 modem (Arris has since bought out the very reputable and reliable Motorola modem division). I had to do this to maximize my Blast internet speeds since receiving a free speed upgrade from Comcast.

The Arris SB6183 is a very popular modem and probably the one most people buy. However, in my case, the Arris SB6183 kept randomly dropping my internet connection and rebooting. The connection would resume after each reboot in about a minute or two. When I contacted Arris about this I was told that Comcast's upload signal was causing the problem, even though Comcast had verified that all my signals were within THEIR specifications. Hence, the modem should not be rebooting. I can verify that Comcast was correct about my signal and power levels, as I have been with Comcast for well over a decade and constantly monitor the signals myself.

Apparently, the Arris upload power level signal specifications for the SB6183 modem are just a little tighter than the upload signal Comcast can provide to my location according to Arris. Hence, their modem detects this and periodically drops my internet connection and reboots. This made no sense to me as the Arris modem is also Docsis 3.0 certified, and IS certtified to use with Comcast. I believed the problem lied with the Arris modem.

I finally did return the Arris modem to Amazon and bought this new Netgear CM600 modem. After 2 days of use, no dropped connections, and no reboots!

It appears the Arris SB6183 modem was the problem. Whether that was due to a defective modem, or the fact that it cannot tolerate normal Comcast signal fluctuations to my location does not matter. It did not work, and Arris was pointing the finger at Comcast's signals. I have had NO such issues with this new Netgear CM600 modem. In fact, this new Netgear modem has more Download and Upload Channels than the Arris modem since it was only recently released. The reason I mention this is that Arris also told me that in general, the more channels a modem has, the more finicky it is about the type of signal it receives. That is why my older Motorola SB6120 modem with fewer channels never experienced the dropped connection issue I was experiencing with the Arris SB6183. Yet, this new Netgear CM600 modem has been rock solid stable without a single dropped connection thus far, and has even more channels than the Arris SB6183 modem I just returned. Consequently, this appears to be an Arris design issue (they insisted the modem was operating normally), not a Comcast signal issue as Arris implied on the phone.

Additionally, this new Netgear modem is also much more elegant looking, and matches the color of their routers which are also of high overall quality. I also have a Netgear Nighthawk R7000 router hooked into this modem. The indicator lights also look way much better on the CM600, and are of just the right brightness when compared to the Arris SB6183 modem. Another important feature is that the ethernet light BLINKS during data transmiision through the Netgear CM600 modem. For some odd reason, Arris removed the blinking property from the data tramsmisiion light on their SB6183. The light just stays on without blinking, giving no indication that data is actually being transmitted. In my book, this blinking helps to confirm a good interenet connection, even though Arris would say that the fact that their data transmission light "just stays on" without blinking also confirms that. The blinking feature adds a bit more icing to the Netgear modem feature set. I suspect this removal of the blinking property of the data transmission light applies to all current Arris modems. Older Motorola modems always had blinking data transmission lights. In fact, this is the first modem I have ever seen without one.

The lights are also much more gawdy looking on the Arris SB6183. The Arris modem casing also has an unsophiscated bright white color, and also has a rather unremarkable bland square shape. It rather looks like a child's toy, not a piece of sophisticated hardware. The Arris modem also appears in general to have a cheaper look, design, and feel to it.

The Netgear CM600 modem looks much more modern and elegant and has a power switch (Arris does not). It actually appears to have some thought behind its appearance and design.

The bottom line here is that you should get this new Netgear CM600 modem. I have always used Mororola modems in the past, but that was Motorola, which is why I instinctively (without much thought) initially purchased the Arris SB6183. Arris sometimes likes to label their modems as Arris-Motorola rather than just Arris. They understand that Motorola's modem division enjoyed a very good history and reputation in the industry before being taken over by Arris. That was then, this is now. The jury on how Arris handles their acquisition of Motorola's highly regarded modem division is still out.

However, given the experience and problems I have just had with the Arris SB6183 modem; its constant disconnects, its rather cheap look and feel, its lack of certain features, and the fact it could not handle the same signal Comcast has provided me for well over 10 years, I will be sticking with Netgear for now.

This is the modem to get if you have Comcast, or one of the other certified ISP's for this modem.

It really is that good, on all fronts, including appearance, performance, features, ergonomics, and design.

Kudos to Netgear.

UpDate 11/12/15: Still NO dropped connections and great performance. Can I give this modem 6 stars?!
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Reviewed in the United States on February 3, 2024
I needed a new cable modem that could support the higher speeds we were now getting. This was an approved modem for Comcast/Xfinity at the time and had good reviews. After a while, the reviews started getting not so good as more people started having issues with it. For the most part it works very well still, but it is no longer an approved modem by Comcast/Xfinity, so you would not longer be able to activate it on their service. After upgrades from Comcast, I'm currently hitting the maximum speeds that the modem can support and will be looking for a new modem soon, but this one has lasted several years and has not given me very much trouble at all. My biggest issue is the shape does not lead itself to mounting it anywhere and it requires a shelf to sit on.