Amazon.com: Customer reviews: Linksys CM3024 High Speed DOCSIS 3.0 24x8 Cable Modem, Certified for Comcast/Xfinity, Time Warner, Cox & Charter (Modem Only, No Wifi Functionality)

Great Modem, Saves You Money and Delivers on Performance

Reviewed in the United States on August 20, 2016

Style: 960 Mbps (24x faster)Verified Purchase

This was a product that was provided to me free of charge for an honest non-biased review.

5 stars is something I will genuinely give a product if it does what it says it does and provides a great solution to either a want or a need. Sounds great right? Well there are a few points about this that make it great.

Savings: Even if I were to just have purchased this product it makes a ton of sense to me. Going from a $10/ month charge to a $7/ mo credit make all the sense in the world when dealing with Comcast/Xfinity your mileage may vary for your provider but this product would have paid for itself in a year of service just not having the rental fee. (the reason I had the rental was for the home security which has an issued added I will talk about later)

Ease of Setup: Plug in the connection like the instructions show or (disconnect everything from the rental and plug them in accordingly)
Follow the instruction panel and call your provider give them the Make Model and MAC ID and boom it takes about 5 minutes and a short registration and you are live.

Performance: Having just the modem connected I ran multiple speed tests and confirmed I was getting my full paid speed (consistent 120 up and 12 down through both wired and wireless connections. I have ran multiple HD video Streams and Online gaming sessions concurrently and have had no performance dips like I did with the provider modem.
(The issue with the X1 integrated modem, which is required for Home Security, is it sets aside some (up to 25%) of your PAID bandwidth for the public hotspot. The built in router and the provided Combo are terrible.)
No more issues for me. Compared to my previous Surfboard I have had 0 issues with the Linksys Cable Modem. It just works.

Looks: I know this is purely subjective but I like the black and hard lines of the box and diminished clutter of text and lights on the front of the unit it goes great with the style I like.

On a side note the LEDs are pretty muted but still easy to see. It helps reduce the light from my already blinky entertainment center vs other modems I have had. I would Highly Recommend this product for all the above reason.

5 people found this helpful

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Maximus

Great little modem.

Reviewed in the United States on May 20, 2018

Style: 343 Mbps (8x faster)Verified Purchase

Great modem. I purchased unit Feb 2017 and it's been going strong ever since I installed. It does exactly what I expected it to do on Comcast Xfinity network. Several months ago Comcast upgraded the download speed from 75 mbps to 150 mbps at no additional charge to their customers. This modem is rated for customers with the 100mbps but after a modem restart I've been getting 175 to 180 mbps download speeds consistently. I've streamed up to 4 sporting events on 4 different TV's with no problem with buffering. The modem does run a little warm but nothing to be alarmed about and no hotter than my Tivo Mini's or AppleTVs. . I keep the modem and other equipment out in the open and not stuffed away in a TV cabinet would could be an issue with most equipment.

Equipment installed using internet:
Nest Thermostats (3), Nest Protect (smoke detectors) (4); Laptops (4), Desktops(2), Apple TVs (5), ROKUs(3), Mobile Phones (3), Ooma VOIP (1), Smart TVs (2)

Insteon Hub (1), Insteon Garage Door Opener (1), Insteon Dimmer Switchers (10)

D-Link EXO AC2600 MU-MIMO Wi-Fi Router: D-Link EXO AC2600 MU-MIMO Wi-Fi Router - 4K Streaming and Gaming, With USB Ports (DIR-882)
TP-Link AC1750 WiFi Range Extender: TP-Link AC1750 WiFi Range Extender with High Speed Mode and Intelligent Signal Indicator (RE450)

2 people found this helpful

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C M

Linksys my old friend!

Reviewed in the United States on August 15, 2017

Style: 960 Mbps (24x faster)Verified Purchase

Back with Linksys for my and my family's network needs and couldn't be happier. I purchased the 2 pack Velop whole-home mesh wifi and Linksys cable modem, CM3024. Calling Cox to set-up the cable modem was quick and painless. Thanks to the second Velop node; I do not have anymore dead zones, my internet speeds are faster then ever and no more resetting Netgear over and over again.

I'm pretty surprised that the nodes are white and not black, but both are behind something so it doesn't show anyway. The main one, next to the cable modem is behind my monitor and the second on the other side of my house is behind a TV. I have a ranch-style house that is a little under 3000sq ft. I noticed the Linksys app (which is pretty cool and easy to use) will have about 14 or so devices online at any given time. I have Cox High Speed Internet Preferred with a total of 22 devices using the wi-fi.

2 smartphones
1 tablet
2 laptops (personal and work)
2 cars (yep cars)
1 desktop
1 indoor camera
1 printer
2 Smart TVs
1 DIRECTV whole home DVR connection kit going to 5 TVs
5 whole home DIRECTV DVRs
3 streaming media players (Roku, etc)
1 e-reader

Before my current setup, I was using the Netgear cable modem router combo. I had problems ever since buying it a few years ago. I will never use Netgear ever again. The connection kept dropping, internet speed was slow, had deadzones, and I remember the hassle for Cox phone support to set it up.

I have a networking degree and am a IT Project Manager so I know when I say the Linksys is the best for my home network needs. I was tempted by having the cable and router in one device and that's why I went with Netgear. However, a lot of professionals and everyday users have the modem and router as two separate devices. Either the router is slow or the cable modem. You're not going to have both a great router and a great modem in one device.

Before Netgear, I had a cheap modem I was renting from Cox and a Linksys router. I'm talking about the old blue router with antennas! I had zero problems at all for over 10 years. It wasn't until I purchased the 2nd smart TV and started streaming more that I had to upgrade and unwisely went with Netgear.

Now I'm back with my trusty Linksys network setup!

12 people found this helpful

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AG

Modem seems to work fine...

Reviewed in the United States on August 13, 2016

Style: 960 Mbps (24x faster)Verified Purchase

Initial review:
Unfortunately, this modem doesn't seem to be compatible with Airport Express and/or Time Warner cable. After three attempts to connect and maintain connection to the Internet, I've decided to return it. It appears that it doesn't allow more than 1 device connected at a time, so in my case, with three devices connected to my home network, it failed every time. This resulted in three tech support calls to TW to reset the modem connection.

Edit:
After more reading about setting up cable modems with external routers [most of us will get a modem/router device from a cable company which is not the same as having two separate devices], I realized that my initial review is wrong. The modem was actually connecting to my ISP/cable company, but the router [Airport Express in my case], needs some changes made in order to handle multiple devices connected to it.
I just wish the tech support personnel at these ISPs would be more knowledgeable and understand the differences between their provided equipment and other configurations.
I'll increase my rating for this device to 4 stars since same can be said about many manufacturers who don't provide enough instructions on setting up modems and routers for real life situations. I feel that the old days of one modem connected to one computer are gone, and to connect a router for multiple devices is common also for home networking.

On another note, buying a high end modem based upon marketing verbiage by seller, is not recommended. Current cable companies offer limited Internet speeds [30, 50, 100, 200, 300Mbps, my cable company, home use], and achieving 960Mbps as claimed by this manufacturer for this model, is unrealistic for normal home use. If you want good performance, you can get a cheaper, 300-600Mbps range modem.

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Good Listener

Works well for a few months, but then will let you down in the long run.

Reviewed in the United States on September 30, 2017

Style: 686 Mbps (16x faster)Verified Purchase

Works well for a few months, but then will let you down in the long run.

I bought this Cable Modem in December 2016, after doing research with my internet provider (Brighthouse) to confirm it was compatible. When it came, I hooked it up to the Linksys WiFi router I bought, and things were great.

After a month, I began to experience random internet service drop outs. A quick reset brought everything back, so I thought nothing of it. Starting around April 2017 (5 months of total usage), the internet service drops got worse. Then we got a big storm that knocked out internet and power altogether. When these services were restored, I could not get WiFi to work in the house. So I called out a Brighthouse technician, who reviewed my connection. The technician advised the diagnostic test showed the modem was receiving internet signals from the cable line just fine, but that it was registering too much "noise" with the signal. He showed me the low Hertz rating. The technician swapped out my Linksys modem for a company modem, and everything came back. All other equipment sharing the power strip was fine, so I can safely say the modem was not the victim of a power surge or anything ridiculous. For those keeping score, at 10 months of service in my house, the Linksys modem was unusable.

Disappointed with Linksys/Cisco.

3 people found this helpful

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Tri Tran

A pretty nifty modem.

Reviewed in the United States on August 9, 2016

Style: 960 Mbps (24x faster)Verified Purchase

Recently received this product for review from Linksys and I have to admit I really enjoy this Modem.

I previously came from the widely available Arris SURFboard much like everyone else and decided to give this one a shot instead.

First thing you'll notice about this modem when you pull it out is the build quality, it's solid and built to last. It is bigger (in comparison to the Arris SURFboard) but it has a pretty futuristic look going for it so I enjoy that.

Enough of the physical aesthetics, let's get into the installation and performance.

Installation is pretty much self explanatory, plug in the ethernet, coax cable, and provided gigabit ethernet cable. Open up a browser and activate it via your ISP. After activation, there was a minor problem that occurred (probably on my end) where I would try to access a website and it would kick me back to the activation screen over and over again, after I cleared my browsing data it was working perfectly.

Performance is fantastic, as soon as it was up and running I didn't really have to think about it after that which is what I like. Running speed tests I average about 90mbps down and 10 up, again no complaints from me.

Overall, if you are looking for a modem you really can't go wrong with this one.

One person found this helpful

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JohnK67

Works great!

Reviewed in the United States on October 13, 2021

Style: 960 Mbps (24x faster)Verified Purchase

I bought this modem to replace my Cisco that had been running 24/7 for 9 years. It is very easy to install. I had to call Comcast the get it activated. After some time on the phone everything was working great. The next day it was back to inactivated status. I called Comcast back. I don't believe it was any fault of the modem. There was a step they forgot to do. The modem works great and runs very cool.

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Wallace_n_Gromit

Severe Intel Puma 6 chip Latency Issue -- 3.5 Rating

Reviewed in the United States on March 8, 2019

Style: 960 Mbps (24x faster)Verified Purchase

My old DOCSIS 2.0 (1 x1) Motorola SB5101U had a 17 megabits/s download speed and 1.75 megabits/s upload speed on my current/new HS internet account of 100megabits/s D/L and 5megabits/s U/L with (24 x 4) channels allotted.

So I thought to upgrade using the Linksys CM3024 DOCSIS 3.0 (24 x 8). The first number indicates the download channels (24) and the second number (8) the upload channels. The higher the number the better.

You can see by looking at the pictures that the Linksys CM3024 is vastly underperforming on the download side (promoted to have transfer rates up to 960 Mbps)--only seeing 13.5Mbps which is SLOWER than my old DOCSIS 2.0 modem with slightly over 17 Mbps and pretty much performing as expected--maybe slightly higher on the upload side 5.79Mbps with my current ISP account.

After doing some online troubleshooting/search, discovered that the Intel Puma 6 chip, which the CM3024 uses, has some severe "latency" issues according to some claims. This has resulted in many Cable Modems, including the Linksys CM3024, being put on "Do Not Use" lists. As far as I can tell there is currently no fix for this problem and you will not see the claimed speeds this modem promotes. (see UPDATE: below)

I am returning the Linksys modem and have ordered (after further research) the NETGEAR CM500 (16 x 4) which does NOT have the Intel Puma 6 chip. I will be happy to report on the performance of the new modem when i provision it on my ISP.

UPDATE:

I Received the NETGEAR CM500 (which does not have the Intel Puma 6 chip). I followed the directions completely to provision it to my ISP, which involved connecting your modem DIRECTLY to a computer not through a Router. I did the speed test on DSLREPORTS; the results are posted as the third picture (106Mbps D/L, 5Mbps U/L) -- SWEEET!

I reconnected everything, including my VPN router( key point here), and did the speed test again. Results are picture 4 (21Mbps D/L, 4,78Mbps U/L)-- UH OH! I did some more research and it appears that some have claimed that a VPN tunnel drops the throughput, which is what I'm seeing.

CONCLUSION:
In light of the issue with using a VPN router, A complete/accurate test of the 3 Modems, the original DOCSIS 2.0, and the 2 DOCSIS 3.0 modems should have been conducted via a direct connection between a computer and the modem and ISP.
I am glad the speed issue arose, as I wouldn't have known about the Intel Puma 6 Chip Latency issue with the Linksys CM3024, because I wouldn't have done the research. I already returned the Linksys and cannot reprovision it to speed test it correctly. I imagine that the speed test would have been good. But I think I would have returned it anyway for a Non Intel Puma 6 Modem.
I am raising my rating to a 3.5 on this Linksys CM 3024 Modem.

5 people found this helpful

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Twain

Unlock your Internet speeds!

Reviewed in the United States on August 21, 2016

Style: 960 Mbps (24x faster)Verified Purchase

I received this modem as a review sample from Linksys.

Literally took 5 minutes to install.
Getting Cox to authorize it took another 15! Cox's self authorization failed (even though it said success).

I did speedtests before and after. My download speeds were the same ( about 160-170 Mbps). Upload speeds were slightly improved.

The real benefit of this Modem is the number of "channels". We are a gaming household. Everyone but Mom plays games. Mom however, is always online too. So we have lots of devices connected. These "channels" really help! Our rental modem from Cox, is nothing special. So when me or my son are eating all the bandwidth playing games, everyone else suffers. Now this is a thing of the past. My son and I can twitch, fps and zombie kill to our hearts content, while Sis watches Netflix, and Mom surfs Pinterest. No interruptions, and no one feels "slow".

Why should you buy this Modem? Cause it is a significant improvement over the rental modems! You own it, which means it will pay for itself. I think I was paying close to $10 a month for our rental modem. So in a year, this modem pays for itself, and after that, you are saving money. More importantly, you are getting a better service. If I had known how much this modem would improve our "house" bandwidth, I would have bought one long ago.

This modem will truly unlock your downloads, when there are multiple users in the house. Last time I checked we have generally 14-20 devices connected at a time in our house. *start counting all the phones, tablets, roku, consoles, smart tvs, and computers... it adds up quick!

Must have, if you are a connected family like us !

One person found this helpful

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leftyserve

Not recommended for Time Warner Cable

Reviewed in the United States on August 19, 2016

Style: 343 Mbps (8x faster)Verified Purchase

Update September 24, 2016:
I must give 5 stars to Linksys Customer Service! They were most gracious. They sent me a paid return shipping label and fully refunded my purchase including sales tax. I found this modem not very compatible with Time Warner. Linksys needs to resolve this issue. It's 1 star for compatibility with Time Warner. It's 5 stars for customer service. So that's an average of 3 stars for this review. Thank you for taking care of this issue for me, Linksys!

Earlier Review:
Not compatible with Time Warner, even though the box and the description say it is. It works. It will connect. However, I'm paying TW for 50Mbps internet. This modem averages 5 or less. To prove it's not a router issue, I tested the connection speed with an ethernet cable connected to the ethernet port on my computer. When the modem is rebooted, I get 50-60+ Mbps, but only for a few minutes. Then the speed begins to decline, until three hours later, it's down to 5, or even as low as under 1 Mbps.

I use the internet for watching TV through a Roku. I enjoy MLB.TV and WatchESPN mostly. However, it gets very frustrating trying to watch sports when the connection is slow. The picture gets fuzzy or it buffers, constantly. I wanted to return this, but I used it for over a month before I figured out the problem. Now it's too late to return it. It's not Time Warner. It's not the router. IT'S THIS MODEM. $60 wasted. Or on the positive side, I'll consider this a $60 lesson.

I replaced this modem with an ARRIS SB6141. I'm getting a consistent 60+ Mbps through my old Netgear wifi router (that is no longer supported by Netgear and really needs to be replaced).

6 people found this helpful

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