The Motorola MB7621 is a reliable 24×8 DOCSIS 3.0 cable modem that works with all the major ISPs at the time of this writing. Multiple Ethernet ports are needed to connect multi-gig 802.11ax/Wi-Fi 6 routers that support link aggregation (multiple Ethernet cables connect the modem and router to support multi-gigabit speeds, but we don’t think most people will be using this feature anytime soon). I bought it to replace my four year old Arris SB6141 which is a 8x4 modem. You don’t always need to spend a lot of money to get great tech. It’s usually less expensive than its competition, it has certifications from Sparklight/Cable One, Cox, and Xfinity, and it has a two-year warranty. Motorola/Arris SurfBoard SB6183 DOCSIS 3.0 Cable Modem (Comcast, Xfinity, Cox, Time Warner Cable, Mediacom, + more!) I recently (about a month ago) purchased this modem to replace the 100mbps modem provided by Spectrum. About 1,165,000 Added Broadband in 1Q 2020, Leichtman Research Group, May 13, 2020, Greg White, How DOCSIS 3.1 Reduces Latency with Active Queue Management, CableLabs, June 6, 2014, Why It’s Important to Upgrade End of Life and Unsupported Equipment, Comcast, Dan Mahoney and Greg Rafert, Broadband Competition Helps to Drive Lower Prices and Faster Download Speeds for U.S. Provides high-speed Internet for a computer, router, HDTV, game station, or streaming media device. Disabling it will result in some disabled or missing features. Another good thing is that this modem has the Broadcom chipset not the Intel puma. Our experience over the past year has been trouble-free. You may be wondering what is the difference between the SB6183 and the MB7420. But I hooked it up anyway. And then on the third day we couldn't connect to the internet. Instead, we started our research by considering all the DOCSIS 3.0 and DOCSIS 3.1 modems that work on the nation’s biggest ISPs—Comcast Xfinity, Spectrum, Cox, Optimum and Suddenlink (both owned by Altice), Sparklight/Cable One, RCN, and WOW—and then narrowed the field to modems compatible with the most popular plans on those ISPs. We upgraded our service to a 400mbps because we have a gamer in the house plus about 14 connected devices on our wi-if. *At the time of publishing, the price was $120. Thorin Klosowski is the editor of privacy and security topics at Wirecutter. Looked at the modem and all the lights were on solid which is never the case, even after I unplugged all wires but the power supply. Before joining Wirecutter, Joel Santo Domingo tested and has written about PCs, networking products, and personal tech at PCMag and PC Magazine for more than 17 years. Don't know what causes this. DOCSIS 3.1 is backward-compatible, so if you have a DOCSIS 3.0 modem and don’t plan on upgrading to gigabit speeds, the DOCSIS 3.0 modem will continue to work with your ISP. So i bought this before the CV-19 and didnt buy this becasue i needed fast speeds. It is compatible with the most commonly offered speed plans from Comcast Xfinity (up to 600 Mbps), Spectrum (up to 400 Mbps), Cox (Ultimate Classic), Suddenlink (up to 500 Mbps), and Sparklight/Cable One (up to 600 Mbps), as well as with WOW’s 600 Mbps plan. A hold on my credit card until they received the fried one, had to wrangle with the warranty department since I didn't use it as a basketball, or mistreat it in any way. Joel became attracted to service journalism after answering many “What’s good?” questions while working as an IT manager and technician. This is a 24x8. Each ISP has a different activation process, but you’ll need to either call the company or visit a URL to activate your modem. If and when the network speeds increase or you upgrade to a higher plan, the SB6141 would be able to handle up to 100Mbps (vs 50Mbps on the SB6121). It appeared that 23 of the 24 available download channels achieved a lock. Linksys AC1900 (CG7500) High Speed DOCSIS 3.0 Cable Modem Router . I have Comcast Performance Pro 150mb service and was routinely seeing about 100mb in real life with the old modem. Since those channels can combine, you can theoretically get up to 606 Mbps with a 16-channel modem and up to 1.2 gigabit per second with a 32-channel modem. We’ve noted in our What to look forward to that we’ll consider and evaluate the Arris S33, Motorola MB8611, and Netgear CM2000 when they’re readily available. With easy installation, high-speed, Broadcom IC technology, broad compatibility, and superb customer support, Model MB7621 is the perfect choice for almost any cable modem user. supports both DOCSIS 3.0 (32x8) and DOCSIS 3.1 modems. DOCSIS 3.0 allows modems to bond multiple channels into a single data stream, giving you 38 Mbps per channel. You should buy a cable modem if you’re currently paying a fee to rent one from your ISP. The Netgear CM600, another highly regarded 24×8 DOCSIS 3.0 cable modem, promises the same performance levels on the same speed tiers as the MB7621—it just costs a bit more and has a shorter, one-year warranty. It is compatible with Comcast Xfinity (up to 250 Mbps), Spectrum (up to 300 Mbps), Cox (Ultimate plan), Suddenlink (up to 500 Mbps), and Sparklight/Cable One (up to 300 Mbps), as well as with WOW’s 500 Mbps plan. If you’re already on a gigabit data tier, we’d recommend that you just go ahead and buy a DOCSIS 3.1 modem. I guess because they have increased the speed on my service and the SB6120 is so old it may not be supported with updates from Motorola. (Altice and Spectrum include the modem-rental cost in their current internet plans, but if you haven’t changed your plan in a few years, you may still be paying a rental fee; give Altice or Spectrum a call to see what your current options are.) As mentioned above, you shouldn’t buy a DOCSIS 3.1 modem right now if DOCSIS 3.1 service isn’t available in your area. Motorola MB7621, 24x8 Cable Modem This cable modem is a great choice for Internet speeds up to the new 400 Mbps and 300 Mbps services available from Comcast XFINITY® and by other service providers. Note that some DOCSIS 3.1 modems advertise “up to 10 Gbps” speeds. vs. NETGEAR AC1750 (C6300) DOCSIS 3.0 Cable Modem Router . Patrick Austin and David Murphy contributed to previous versions of this article. While reviews suggest that the CM600 is a reliable modem, Netgear’s included one-year warranty isn’t great considering that most other modems (including the Motorola MB7621) come with a two-year warranty. The ports are hidden behind a yellow sticker to prevent confusion, but it’s easy to pull it off for access. When I put this new cable modem on the coax the download speed consistently dropped to about 32mb. Where applicable, we also include the maximum speeds that each ISP supports. I will recommend any Motorola Cable Modem after 17 years expieriance. This is my second Motorola Cable Modem. It might sound smart to buy the best modem available, but the interplay between the technology, your location, and the ISP means your chances of wasting money on a device that might not work in the future are higher with modems than with other types of electronics. Don’t buy a cable modem if you’re on DSL or fiber; those technologies use different standards and connectors. This is the theoretical limit of the DOCSIS 3.1 standard, and they are currently unreachable. The MB8600 could consolidate these into a single box, but you’d still need separate routers for each network. Connect the power cord to the Power port on your SB6183 and then plug it into an electrical wall outlet. Motorola MB7621. In the early days of DOCSIS 3.0 service, ISP's had a hard time limiting speed across multiple channels, and people getting DOCSIS 3.0 modem were reporting getting much higher speeds than before and much higher than what they were paying for. Forum discussion: Fed up with AT&T, and 6mbps is top speed at my location, so I've had it. A former top pick, the Netgear CM500 is still a good choice for the budget-minded internet user. However, this feature is only applicable if you need separate accounts in your home for business and personal or family use, coming in on the same physical coaxial cable. I'm going to but my modem, not lease it, and curious if the Motorola MB7420 is the best way to go. Thorin Klosowski spent almost six years at Lifehacker writing about hardware, software, and every other facet of technology. We've spent hundreds of hours testing dozens of routers, mesh kits, and extenders to find the best gear to get strong Wi-Fi throughout your home. Please make sure that you are posting in the form of a question. Most currently available 24×8 or 32×8 modems max out at 600 Mbps or 1 Gbps, respectively. If your plan is in that range and you don’t intend to upgrade beyond 300 Mbps anytime soon, we recommend the Netgear CM500. If you’ve had your modem for four or five years, give the model name a quick Google search; you might still be using a modem that supports only DOCSIS 2.0, in which case it’s time to upgrade. SURFboard DOCSIS 3.0 SB6183 Cable Modem Refurbished Utilizing the power of DOCSIS 3.0, the SURFboard Utilizing the power of DOCSIS 3.0, the SURFboard SB6183 provides an ultra-fast Internet experience. Many ISPs rent out modems that double as wireless routers, which means that if you replace your rental modem with one you bought, you may also need to buy a wireless router if you want Wi-Fi in your house (if you’re not sure what the difference is between a router and a cable modem, we have a guide for that.) The lists of best products are updated regularly, so you can be sure that the information provided is up-to-date. Mediacom Modems ARRIS SB6121 ARRIS SB6141 ARRIS SB6183 ARRIS SB6190 Motorola MB7220 Motorola MB7420 Motorola MB8600 NETGEAR CM1100. The MB7621 is also approved by Charter Spectrum, Suddenlink, CableOne, RCN and more. Reviewed in the United States on August 1, 2018. Reviewed in the United States on October 7, 2018. Reviewed in the United States on May 16, 2018. The CM500 matches the ISP compatibility of the pricier CM600, but its maximum download and upload speeds are lower (300 Mbps on the CM500 versus 600 Mbps on the CM600, though Suddenlink certifies it for 500 Mbps speeds). Forum discussion: Hi! Approved by Comcast Xfinity, Cox, Charter Spectrum, Time Warner Cable, and More. These particular modems also use the problematic Intel Puma 6 chipset, which can cause latency issues. However, the performance I saw was much worse than the older SB6141 with download speeds. I don't think it's just a freak thing that my sister's modem did the same exact thing within 3 months! Motorola MB7621 TP-LINK CR1900 NETGEAR CBR40 Technicolor CGM4141 Linksys CG7500 Motorola MG7700 NETGEAR CM1100 ARRIS SBG10 ARRIS SBG7600AC2. However, the performance I saw was much worse than the older SB6141 with download speeds. Reviewed in the United States on April 14, 2019. I had no problems with the SB6120, but got an email from Xfinity saying I needed to upgrade my equipment. The MB7621 is 24x8 so in theory it should give better performance. It shares many of the same features as our top pick, including wide ISP approval, at a lower purchase price. You’ll need a DOCSIS 3.1 modem like our upgrade pick only if you’re in one of those covered areas and you have a gigabit-speed internet plan—they’re expensive right now, and you won’t see faster speeds unless you pay for one of those gigabit plans. I bought it to replace my four year old Arris SB6141 which is a 8x4 modem. Although the MB7621 has solid support from every major ISP right now, double-checking your ISP’s compatibility page before you purchase the modem is still a good idea. Tried to reboot, reset, unplug and plug in again...to no avail. two routers/computers with two separate IP addresses, extend DOCSIS 3.1 gigabit service to 50 million homes, About 1,165,000 Added Broadband in 1Q 2020, How DOCSIS 3.1 Reduces Latency with Active Queue Management, Why It’s Important to Upgrade End of Life and Unsupported Equipment, Broadband Competition Helps to Drive Lower Prices and Faster Download Speeds for U.S. Over the years my provider has upped their internet speeds and my first Motorola Modem always performed well. It just stayed lit and no service. You’ll only need a DOCSIS 3.1 modem like our upgrade pick if you have a gigabit-speed internet plan—they’re expensive right now, and you won’t see faster speeds unless you pay for one of those gigabit plans. The CM1000 has only one Gigabit Ethernet port in the back, so you won’t be able to use link/port aggregation on this modem in the future. Verizon Fios lets you buy your own modem-router combo, but you have only a single choice, and it's identical to the equipment they rent to you. If you want to know the difference in the Arris CM8200 vs SB8200, there is none. Its great performance, sleek yet practical design, labeled ports, powerful user interface, power button, helpful instructions, and included … Arris TM1602 Docsis 3 Phone Modem + Netgear R6300 Wireless Dual Band A/C Router Package (Optimum/Cablevision) $220.00 $109.97. I looked at the specs on my first Motorola and found it didn't have enough channels to go up to 200mps. I am happy that I am now getting the speed I am paying for. They are compatible with 32×8 DOCSIS 3.0 networks, and you’ll be all set if or when your ISP adopts DOCSIS 3.1. Reviewed in the United States on August 5, 2018. Owners like it; Amazon reviews are consistently positive. This Motorola MB7621 cable modem was a huge disappointment. So long story short. If you buy a 1 Gbps modem but pay for only 300 Mbps service, your download speeds are still limited to 300 Mbps. Comcast Xfinity’s webpage has a checkbox so you can determine which approved modems are voice/telephone enabled, and Cox has a list of approved modems that are compatible with their voice services. One at a higher price for myself (MB8600), then this one (MB7621) for my sister. The Netgear CM600 is a 24×8 DOCSIS 3.0 modem that supports the same performance levels as the Motorola MB7621, though it is slightly more expensive. Reviewed in the United States on April 19, 2020. Also don’t buy one if you use your cable provider for telephone service: The models we cover here don’t have phone ports. It’s less expensive than comparable modems like Netgear’s CM600 and it has a two-year warranty, so you can save a bit more money and have your hardware covered for longer. Note: With Spectrum, I had to call them up and lt them activate and register the MB7621. Not to worry though—other providers, including AT&T Fiber, CenturyLink, Frontier, Verizon, and Windstream, are expanding their networks. Nationally, Comcast began to deploy its speedier DOCSIS 3.1 internet plans starting with 15 cities in 2017, with plans to reach all 39 states they service by the end of 2018. The first two versions of DOCSIS used only one downstream channel (for downloading data) and one upstream channel (for uploading data). We also don’t have the capability to test multiple modems on multiple ISPs ourselves. I bought this becasue my old modem was an 8x4 and i wanted to get something with a bit more speed. MB7621 - 24x8 Cable Modem; MB7621 - 24x8 Cable Modem Follow New articles New articles and comments. The CM1100 features two Ethernet ports, the same as the MB8600, while the business-oriented CM1200 has four. We tested leading UPS models and found the Tripp Lite AVR750U to be the best option for getting a little extra power to essential gear during a blackout. Went to Walmart and purchased a different modem altogether and it's even faster, setup even easier, and it has not crashed at all. Reviewed in the United States on April 5, 2018. Had to return it. The people behind DOCSIS say that the improved technology of the 3.1 standard will lead to better stability even at slower speeds. If you are in one of those cities and want to subscribe to one of the proposed gigabit internet plans, wait to purchase a modem until you have the plan so that you know it’s compatible. We spoke with Belal Hamzeh, vice president of wireless technologies at CableLabs, the company that came up with DOCSIS, and he pointed out that a big strength of DOCSIS 3.1 lies in the upgrade process: To introduce DOCSIS 3.1, an ISP doesn’t need to upgrade its cable lines—only the hardware in its facilities. Charter has plans to extend DOCSIS 3.1 gigabit service to 50 million homes in the same time frame. *At the time of publishing, the price was $150. Charter Spectrum Approved Modems Added in November 2019 Motorola MB8600 Motorola MG7700 NETGEAR CM1000v2. It is more expensive and has a shorter warranty than the Motorola MB8200, but the CM1000 is a worthy alternative if the latter is unavailable. Even though it is listed as being Comcast Xfinity compatible it certainly did not work for me. Joel Santo Domingo is a senior staff writer covering networking and storage at Wirecutter. I still have the one they issued me for my broadband telephone landline. vs. ARRIS SB6190 DOCSIS 3.0 Cable Modem - Retail Packaging - White . DOCSIS 3.1, which our upgrade pick supports, is the next standard for internet cable modems and ISPs. THANKS AMAZON.. love y'all for refunding my hard earned cash so I can get away from this Motorola modem! Don't know if I got a faulty modem, or it is a firmware bug, or compatibility with my ISP (Optimum). However, the performance I saw was much worse than the older SB6141 with download speeds. And they may not even let you bring your own modem once they do roll out gigabit service. See all details for Motorola 24x8 Cable Modem, Model MB7621, DOCSIS 3.0. This modem (MOTOROLA MB7621) drops the Internet connection periodically - between several times per day and once per a couple of days days. I have xfinity performance pro which is rated for 150 mb/s down and 5 mb/s up. After 2 months on my internet service and 4 service calls later, i installed my 8x4 back online and it is much better. I noted another reviewer also saw speed slowdowns on this modem. Our former top pick is still a good choice if saving money is important to you, and as long as you haven’t upgraded to a service plan faster than 300 Mbps. When you buy through links on our site, we may earn an affiliate commission. If you're OK with Docsis 3.0 ... then this cable modem is fantastic and fast! Our favorite Wi-Fi router currently sells for less than $200, but you can find a decent one for around $100. In the discussion with the TECH, he said that Arris bouth the hardware and Zoom bought the software. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. The MB7621 is a DOCSIS 3.0 modem with 24 downstream channels and eight upstream channels. The MB7621 is a DOCSIS 3.0 modem with 24 downstream channels and eight upstream channels. Contacting my ISP and Motorola Technical support did not help to resolve the problem. Cox aims to have DOCSIS 3.1 in 99% of its service area by the end of 2019, with over 94% coverage in areas like San Diego, and the regional provider Mediacom has already rolled it out in parts of Indiana. The ports can also be used to support two (or more) separate IP addresses from your ISP. Ethernet port on your SB6183. The Motorola MB7621 stood out for its combination of robust performance, exemplary ease of use features and great price.
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