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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

Pros mentioned filter

Cons mentioned filter

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 24 Showing 461-480 of 839 reviews
  • Rated 1 out of 5 stars

    Daily Restarts, Don't buy

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

    I bought this modem over a year ago. It worked for the first few months with no issues. Once winter came i thought my spectrum internet was going out almost every day. I had multiple techs come and check everything and nothing was wrong. Eventually i found out that almost everyday this modem was restarting itself, sometimes multiple times a day. I'm guessing that Spectrum updated something with their modem service which is why it doesn't work properly. But anyway, I've been using the free spectrum modem for 2 weeks and no issues. Don't bother buying this modem.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Speed

    Rated 5 out of 5 stars

    Awesome modem

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

    Does exactly what it's supposed to do, focused on speed, works great w Xfinity gig internet

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

    Rated 5 out of 5 stars

    Runs cool and works with Comcast!

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

    Reliable, runs cooler than ARRIS and works without any rebooting etc required. I've ran this for 3 months and no issues with comcast.

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

    Rated 5 out of 5 stars

    Fantastic 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 replace my netgear modem and this one tops it very easily. Never drops and consistent internet connection.

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

    Rated 5 out of 5 stars

    Fast and easy

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

    Works well with fast speeds. Sometimes needs a restart, but seems like it's mostly xfinity's weird issues.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Its.... okay.

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

    So far so good, however there have been some drops in wifi reception since i switched this modem out for an older one that never did. I only switched it out because Xfinity kept reminding me that it was no longer compatible. If reception improves I'll give it a five but its only been a few weeks.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Motorola Modem

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

    We needed to replace an old Modem and this works great and meets Comcast requirements.

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

    Rated 5 out of 5 stars

    Above my expectation

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

    Great quality and easy to setup through Xfinity app. It takes me 10 mins to upgrade my old cable modem. The speed is up to my cable plan.

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

    Rated 5 out of 5 stars

    Great buy

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

    Very fast and excellent connectivity. Well worth the money. Easy to hookup to Xfinity.

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

    Rated 5 out of 5 stars

    Modem works well with my Xfinity service

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

    Modem works well with my Xfinity service. Took advantage of the Best Buy trade in offer too!

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

    Rated 4 out of 5 stars

    good

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

    very good. worksnbetter than nighthawk modem easy setup

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

    Rated 5 out of 5 stars

    Fast Modem

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

    Very fast modem. Upgraded from an old Arris Surfboard. This brought my speed way up!

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

    Rated 5 out of 5 stars

    MB8611

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

    This modem has been flawless since I purchased it several weeks ago. I would recommend this model to anyone who has gig service or higher.

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

    Rated 5 out of 5 stars

    Better then the modem Spectrum sent to me

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

    I noticed a performance improvement as soon as I replaced the cable modem provided by Spectrum

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

    Rated 5 out of 5 stars

    Great Modem

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

    This modem has been flawless since I purchased it several weeks ago. I would recommend this model to anyone who has gig service or higher.

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

    Rated 5 out of 5 stars

    promises, delivered

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

    can not recommend enough, this cable modems met my needs and then-some, happy I bought this for my house

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    nice unit.

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

    Works great, no issues. Came with instructions, wires, worked nice with xfinity saves me money each month in rental fees

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

    Rated 5 out of 5 stars

    Consistent, full internet speed

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

    Worked with Cox Communications and our internet has been consistent and full speed.

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

    Rated 5 out of 5 stars

    Great speeds.

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

    Our internet speeds went up a ton with this modem vs the one we received from the provider. Happy we upgraded.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    great name brand

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I get a dropped connection a lot or just get froze.

    No, I would not recommend this to a friend