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๐Ÿš€ motorola mb8611 docsis 3.1 multi-gig cable modem: ideal for xfinity gigabit, cox gigablast, spectrum & more! logo

๐Ÿš€ Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem: Ideal for Xfinity Gigabit, Cox Gigablast, Spectrum & More! Review

6

ยท

Very good

Revainrating 4 out of 5ย ย 
Ratingย 
4.0
๐Ÿ“ถ Modems, ๐Ÿ“ถ Networking Products

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Details

BrandMotorola
Internet service providerComcast Xfinity, Cox Communications, Charter Spectrum
Connectivity TechnologyEthernet, WiFi
Item Dimensions LxWxH7.25 x 2.25 x 7.88 inches
ColorBlack

Description of ๐Ÿš€ Motorola MB8611 DOCSIS 3.1 Multi-Gig Cable Modem: Ideal for Xfinity Gigabit, Cox Gigablast, Spectrum & More!

Ultra-fast DOCSIS 3.1 performance - Delivers true Gigabit-plus speeds. Supports fast internet plans with Comcast Xfinity, Cox, and Spectrum. Backward compatible with 32x8 DOCSIS 3.0. Pairs with any WiFi router - Seamlessly compatible with any WiFi router to connect all your devices. This cable modem does NOT have a built-in wireless router or telephone call capability. Multi-gigabit Ethernet speed - A 2.5 GB Ethernet port delivers true high-speed connectivity to even the fastest routers and computers, providing downstream speeds just below 2,500 Mbps and upstream speeds up to 800 Mbps when supported by your internet service plan. Fast streaming, conferencing, gaming - Applies Active Queue Management (AQM) for reduced Internet latency and better app performance, including online gaming, conferencing, and streaming. Extreme cost savings - Owning your own modem typically saves the home $168 per year in monthly rental charges. (Savings described is for Comcast Xfinity and vary by service provider.). Built for reliability - Motorola is a worldwide leader in technology people depend on. Comes with a 2-year warranty and free support from our team of USA technicians.

Reviews

Global ratings 6
  • 5
    3
  • 4
    2
  • 3
    0
  • 2
    0
  • 1
    1

Type of review

Revainrating 1 out of 5

Works great with Comcast/Xfinity

Great product. Works as advertised. The user manual is terrible, but the support from Motorola is too bad. For use with Comcast/Xfinity: 1) Plug in your modem, plug in the coax cable and connect an ethernet cable to port 1 on your laptop. 2) Go to the xfinity setup webpage on your laptop and enter your credentials. to activate the modem (the address of the web page is given in the user manual) 3) The modem will reboot and then you should have a wired internet connection with your laptop powered

Pros
  • Good workmanship
Cons
  • Secret

Revainrating 5 out of 5

Recommended by this cable tech

Speaking of cable tech for one of the big companies, this one runs on less heat (less heat, more efficient with power) and is more stable (almost doesn't fall out as easily due to low dBmV or low MER) than the Ubee, Technicolor, and Arris models that my company "packages for free". And yes, AQM also works with the Cisco CMTS that we currently use as our hubs, at least in my city where I work. I bought one in December and it runs on the server without interruption. Of course, line damage or RFโ€ฆ

Pros
  • handy thing
Cons
  • some little things

Revainrating 5 out of 5

If you are satisfied with Docsis 3.0. then this cable modem is fantastic and fast!

This cable modem is a beast (in a good way)! A little over 7 years ago I bought a Motorola SB6120 to replace a crappy cable modem that Comcast was charging me monthly. I had no problems with the SB6120 but received an email from Xfinity saying I needed to upgrade my hardware. I suspect they have increased my service speed and the SB6120 is so old that updates from Motorola may not support it. Good. I paid $75 for the SB6120 and it probably saved me over $750 in monthly rent for 7+ years. Firstโ€ฆ

Pros
  • Regular price
Cons
  • No performance

Revainrating 4 out of 5

ATTENTION: Buy at your own risk!

I bought two Motorola modems. One at a higher price for me (MB8600) then this one (MB7621) for my sister. Mine failed within 6 months for no apparent reason. No storms, lightning, power surges, just surfing the web one minute and brick the next. I had to go through so much pain to get my replacement back. Blocking my credit card until they got the roast had to contend with the warranty department as I wasn't using it as a basketball or handling it in any way. It's just on the table. reallyโ€ฆ

Pros
  • good thing
Cons
  • security

Revainrating 5 out of 5

Gives me the speed I pay for and can go further, plus easy setup.

I have xfinity performance pro which is rated for 150 mb/s incoming and 5 mb/s incoming. I used an Arris SB6141 modem with 8 downlinks and 4 uplinks, great modem, no problem but max speed is 120mbps downlink and 5mbps uplink. I figured what the heck could get the speed I'm paying for, so I bought a Motorola SB7621 with 24 channels down and 8 channels up. Internet speed is now 180Mbps and 6Mbps with 19ms ping. I'm glad I'm getting the speed I'm paying for now. Yes, the download speed hasn'tโ€ฆ

Pros
  • Pair with any wireless router. Fully compatible with any WiFi router to connect all your devices. This cable modem DOES NOT have a built-in wireless router or phone calling function.
Cons
  • There are disadvantages

Revainrating 4 out of 5

Reliable, affordable alternative to the ArrisSB8200 and Netgear CM1000

The Xfiniity compatible modem is easy to set up by following the quick start guide that came with it. Tip for Comcast/Xfinity subscribers - when going through the setup wizard, selecting the option to send an activation code is a joke - the code is only valid for 15 minutes, but it took me 30 minutes to get the text; just stick with your Xfinity account name for activation and initialization. Xfinity was updated to DOCSIS 3.1 and while my own 6 year old trusty Motorola Surfboard SB6580 workedโ€ฆ

Pros
  • Multi-Gigabit Ethernet Speed - The 2.5GB Ethernet port provides true high-speed connectivity for even the fastest routers and computers, delivering close to 2500 Mbps downstream and up to 800 Mbit/s upstream with the support of your Internet tariff.
Cons
  • Not the best