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Customer Ratings & Reviews

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Customer reviews

Rating 4.4 out of 5 stars with 839 reviews

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Rating by feature

  • Connection Quality

    Rating 4.4 out of 5 stars

  • Performance

    Rating 4.4 out of 5 stars

  • Setup

    Rating 4.6 out of 5 stars

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85%would recommend to a friend

Customers are saying

Customers have good things to say about the MB8611 32x8 DOCSIS 3.1 Cable Modem's ease of use, performance, and setup process. Many appreciate its 2.5 GB Ethernet port and consider it a good value. However, some customers reported issues with connection stability and signal drops. The modem's compatibility with various internet service providers is also noted.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 2 Showing 21-40 of 839 reviews
  • Rated 5 out of 5 stars

    Great device

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The Motorola ultrafast modem has increased the efficiency of my WiFi.

    I would recommend this to a friend
  • Pros mentioned:
    Setup, Speed

    Rated 5 out of 5 stars

    Don’t pay your cable company to rent one

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The Motorola MB8611 cable modem is a top-notch networking device that can significantly enhance your home internet experience. Known for its reliability and performance, this modem offers a range of features that make it an excellent choice. Firstly, it's compatible with most major cable internet service providers, ensuring seamless integration with your existing network. With support for high-speed internet plans, it's perfect for streaming, online gaming, and other bandwidth-intensive activities. The modem's advanced DOCSIS 3.1 technology allows for blazing-fast download and upload speeds, reducing latency and providing a smooth online experience. Its robust build quality ensures longevity and stability. Moreover, the MB8611's easy setup and user-friendly interface make it accessible to both tech-savvy users and those new to networking. It's also equipped with multiple Gigabit Ethernet ports for connecting devices directly, eliminating the need for an additional router in some setups. Overall, the Motorola MB8611 cable modem is a dependable and high-performance networking device, deserving of a five-star rating. It's an investment that can lead to faster and more reliable internet connections for your home.

    I would recommend this to a friend
  • Pros mentioned:
    Performance, Speed

    Rated 5 out of 5 stars

    Just what you want

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The AXE 11000 Quad bans WiFi 6Emesh system 963 pack is nice. I would like it if it was the black one but I would have had to order it and would not feel safe left out side waiting for me to get home so I got the white ones from Best buy. It's still the same unit and it out performs all the routers I have had in the past. It makes my security system work much faster on live feed and streaming video is faster too. I now can take advantage of the full speed that I am paying for from my internet provider. So far so good. I noticed the difference and you will too. I think the Quad band dedicated line for communication between the nodes make a difference. Stop looking for the best, I think its here. You will need a fast internet speed good modem and the Netgear Orbi AXE 11000 will perform just the way you want.

    I would recommend this to a friend
  • Pros mentioned:
    Speed

    Rated 5 out of 5 stars

    Good ol' Moto!

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Motorola Modems have always been solid for me in the past and on first impression this one works just fine getting me to the limit of what Spectrum can provide on their Gigabit connection plan. My only troubles were with Spectrum not noting my account properly that I was switching from Ultra to Gig plan and this required over half an hour on the phone to get a manager to make the changes correctly on the account.

    I would recommend this to a friend
  • Pros mentioned:
    Ethernet, Performance, Speed

    Rated 5 out of 5 stars

    Speedy Docsis 3.1 cable modem!

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This Docsis 3.1 modem is fast! The 2.5G port also enables speeds higher than the typical 1Gbps maximum of most modems. This unit has been very reliable (reviewing after about 6months od use) without any downtime caused by the modem itself.

    I would recommend this to a friend
  • Pros mentioned:
    Performance, Setup, Speed

    Rated 5 out of 5 stars

    Increased Speeds and Future-Resistant

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Comcast let me know that they were increasing speeds on my plan without charging me for it but that my current modem wouldn't support it - after looking into it, this modem was supported, wasn't the much more expensive than what I had bought 6 years ago, and would hopefully last me at least another 5 years, so far it has performed admirably. Setup was easy thanks to the xFinity app and after about an hour of super slow speeds, a hard reset gave me a solid experience. So far no great choice and maybe one day when I can get 1 Gig speeds I'll be able to still use this modem.

    I would recommend this to a friend
  • Pros mentioned:
    Performance, Speed

    Rated 5 out of 5 stars

    Would definitely buy again!

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Extremely fast and a nice upgrade to my old Arris modem. Upgraded my home internet speed and old kodem limited my speed and wasn't up to the task. Immediately noticed a speed difference once I plugged this in. Good value for the price too.

    I would recommend this to a friend
  • Pros mentioned:
    Ethernet

    Rated 5 out of 5 stars

    Great modem However Not as ISP friendly as Arris

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    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent modem I had the Arris SB8200 and was ready to upgrade to the Aris S33 Thought you know what since the Motorola 8600 was its counterpart Why don't we try taking the Motorola route and then I realized it wasn't going to work so I ended up having a return it and they kindly took it back and gave me an S33 I ordered the Motorola you see here online they took it back to the store and exchange it no questions asked But I still explain to them What I figure is the Eris modem likely has an unlocked bootloader and that's why it's so user-friendly with like pretty much any ISP and honestly you just can't go wrong with them I also like to keep mine on a desk fan underneath my coffee table and I keep it sideways on top of the desk fan lying flat to keep it nice and cool but I've never had an issue with the other one you know in the past even though it got warm but honestly electronics run better when they stay cool Keep that in mind. I would recommend this product for the right services listed on the package However for most people I would recommend the Arris S33 if you're looking for a modem in this market,

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Speed

    Rated 5 out of 5 stars

    Stable connection

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great modem gives me 340 out of 300mbs provided by xfinity. Set up was breeze with cs support in the chat. Best value out there. Modem support docsis 3.1 which is even better at low speeds - it makes connection faster and secure. At some point xfinity/comcast will ban docsis 3.0 modems, so futureproofing with this purchase will make your wallet happier down the road when you will be urged to buy 3.1 anyway.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Performance, Setup

    Rated 5 out of 5 stars

    Awesome modem.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This modem is awesome. Set up was a breeze. Have had no issues with performance or technical problems with it. Still running since the day i installed it.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Performance, Speed

    Rated 5 out of 5 stars

    Great

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good modem and reliable. Has all the latest requirements needed for fast internet. Set up was easy.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Great 1Gig plus modem option

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    When my cable company recently upgraded my connection speed, I noticed that it was not faster and this was apparently due to it only being a DOCSIS 3.0 modem, so the solution was to upgrade to a 3.1 modem. What I liked about this one is that it’s future proofed due to the 2.5 gig port which my router also supports. Hopefully one day my cable company offers >1Gig so that I can take advantage of this. It’s been very reliable so far, so I would not hesitate to recommend buying one.

    I would recommend this to a friend
  • Pros mentioned:
    Performance, Speed

    Rated 3 out of 5 stars

    Good modem but only lasted a couple years

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    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Purchased this cable modem in August 2021 for gigabit internet with Cox. It was a fast and reliable modem but unfortunately didn't last as long as previous cable modems I've owned, just a little over 2 years. In November 2023, my internet started dropping out for brief periods of time several times a day. My ISP Cox recommended I purchase a new modem if the problem persisted. After a few more weeks of dealing with internet dropouts, I finally replaced it with a new Surfboard cable modem which resolved the dropout issue. I would expect cable modems to last at least 3 or 4 years.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Ease of use, Setup, Speed

    Rated 5 out of 5 stars

    Should be a workhorse

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Excellent speed and easy setup makes this an excellent purchase.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Performance, Setup

    Rated 5 out of 5 stars

    Excellent

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    We noticed our internet speeds slowing down over the past few months so we knew it was time to replace our modem. After some research we decided on this one. It was very easy to install and get up and running. We immediately noticed a huge speed boost to our download/upload speeds. Also no buffering while watching shows or lag while gaming.

    I would recommend this to a friend
  • Pros mentioned:
    Performance, Setup, Speed

    Rated 5 out of 5 stars

    Easy Install, Good performance

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    We had previously used Motorola modems with our Comcast Xfinity service and always had good performance. Our old Motorola modem was still going strong but was outdated and limited the speed we could get on our internet plan so it was time for an update. It was easy to install and connected without any problems - almost plug and go (although it took a few minutes to activate through Xfinity.) We have a Netgear Nighthawk router and extender and we've had no issues with those working with this modem. I will say that the speeds I am getting on my desktop are about the same as with the old modem, but I tested other devices (iPad, laptop, etc.) and there is a definite speed improvement, so I believe there must be some speed limitations on my older desktop.) I would purchase this again.

    I would recommend this to a friend
  • Pros mentioned:
    Setup, Speed

    Rated 5 out of 5 stars

    Great Modem for Comcast / Xfinity

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I realized that my existing modem was not providing me with all of the internet speeds that I was paying Comcast for. I purchased this modem and I noticed a difference in my downloads speeds immediately! Very easy to set up too! It is even recommended by Xfinity!

    I would recommend this to a friend
  • Pros mentioned:
    Ethernet, Speed

    Rated 5 out of 5 stars

    High speed internet

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Was easy to install. Took Xfinity customer service some time to set up in their system but once they did could see a big difference in speed and saw the difference in the WiFi app plus have an all in one with Ethernet line and it is instantaneous. I am really pleased with the purchase

    I would recommend this to a friend
  • Pros mentioned:
    Performance, Speed

    Rated 5 out of 5 stars

    5/5

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is actually a really good and reliable modem that Motorola makes reliable and fast

    I would recommend this to a friend
  • Pros mentioned:
    Ethernet, Speed

    Rated 5 out of 5 stars

    Cable Modem with power

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is the modem for you. Fast and reliable. Output 2.5 GB ethernet to your router Note: I use COX communication.

    I would recommend this to a friend