Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds
Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds
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Motorola

Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem | Pairs with Any WiFi Router | Approved for Comcast Xfinity, Cox Gigablast, Spectrum | 2.5 Gbps Port | 2500 Mbps Max Internet Speeds

4 stars out of 70 reviews
(4.0)|
70 ratings

Key item features

  • Gigabit Performance: Delivers true Gigabit-plus speeds with DOCSIS 3.1, supporting fast internet plans from Comcast Xfinity, Cox, and Spectrum, and is backward compatible with 32x8 DOCSIS 3.0.
  • Router Compatibility: Seamlessly pairs with any WiFi router, including mesh or gaming routers, to provide shared internet access for all WiFi and Ethernet-capable devices.
  • Multi-Gigabit Port: Features a 2.5 GB Ethernet port, enabling high-speed connectivity with downstream speeds approaching 2,500 Mbps and upstream speeds up to 800 Mbps.
  • Optimized Performance: Utilizes Active Queue Management (AQM) to reduce internet latency, enhancing performance for online gaming, conferencing, and streaming.
  • Cost Savings: Owning this modem can result in significant annual savings by eliminating monthly rental charges from internet service providers.
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Customer ratings & reviews

4 out of 5 stars
stars70 ratings61 reviews
How item rating is calculated
  1. 5 stars70% (49)
  2. 4 stars6% (4)
  3. 3 stars1% (1)
  4. 2 stars0% (0)
  5. 1 star23% (16)

Reviews summary

Pros
  • : Offers great value considering speed and warranty.
  • : Provides maximum internet speeds up to 990mbs.
  • : Setup process takes around 5 minutes.
  • : Provides consistently high speeds.
Neutral
  • : Can be outstanding, but may not meet expectations for some users.
  • : Can provide fast speeds, but may experience random drops.
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Showing 1-3 of 61 reviews

Jun 7, 2021
JustDave
5 out of 5 stars review

Great way to break away from leasing

Nice and compact. About half the size of the Xfinity supplied modem/router that I had been using. First photo shows all of the contents of the carton, and the second shows the WavLink modem on the right, and the old Xfinity modem on the left. Sloppy initial setup by me. I'm in my fifties, and not a tech expert by any means. From the time I opened the box, until I had an Xfinity television cable signal and ethernet internet, it was 15 minutes. Another 10 and I had a new WiFi router connected. I have a 200 Mbps cable plan, and my first and second speed tests both showed 236Mbps and 239Mbps download via Ethernet, and the same via WiFi. This modem does not have a built-in WiFi router. That wasn't a problem for me, I bought an AC1200 dual band (2.4ghz & 5ghz) router for 30 bucks. More than enough speed for me. I'm not a gamer, and don't have a lot of devices connected; just a Wi-Fi extender, a phone, a tablet, and a laptop. 100% of my income comes from swing trading stocks, so a consistently fast and stable internet connection is an absolute must. For my purposes, this Motorola MB8611 modem, in combination with my router, works just as well, if not better, than the modem I was leasing from Xfinity for $15 a month.

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Apr 4, 2025
Benny
Item details
Size: New
Sold byWarehouse Goods & MoreDelivered byWalmart
5 out of 5 stars review

Verified Purchase

Perfect for Xfinity Users

I recently purchased the Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem through Walmart as part of my move to New Jersey, and I couldn't be more pleased with the entire experience. Walmart remains one of the most reputable and reliable retailers I've shopped with—smooth transaction, fast shipping, and everything arrived in perfect condition. I had done extensive research ahead of time and found that this Motorola modem consistently ranked among the top recommendations for compatibility with Xfinity service. I opted to use my own equipment rather than rent devices from my internet provider, and the setup process could not have been easier. Once my Xfinity service was active, I connected the modem with my own coaxial cable and paired it with a separate router. The modem powered up quickly, and the LED indicators were clear, easy to read, and user-friendly. Motorola continues to uphold its reputation for quality, and I'm confident this modem will serve me well for years to come. Highly recommended!

Helpful?3ERL20DAMRVP528073648
reply from Motorola Customer Care

Thank you so much for sharing your experience, Benny. We're proud to provide reliable and high-quality products that help make your home internet experience better. It's also fantastic to know that Walmart provided such a smooth and efficient purchase experience. We really appreciate your recommendation, and we're confident you'll continue to enjoy top-notch performance for years to come. If you ever need any support or have questions in the future, don't hesitate to reach out. -Mitch

Jun 6, 2021
Yarssh
5 out of 5 stars review

Motorola MB8611 Multi-Gigabit Cable Modem 2.5GB

This Motorola MB8611 Multi-Gigabit Cable Modem with 2.5GB Ethernet is a solid device for all your Internet needs. Dependable and fast, Compatible with Xfinity Cox and Spectrum. Communicates Internet and data with you and your Internet Service Provider -it's the device that plugs into the wireless router.

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