Zoom’s Motorola MB8600

Zoom Telephonics will introduce its first full-featured DOCSIS 3.1 modem for broadband consumers later this month at a price of $159.99.

The Motorola MB8600 includes four GigE LAN ports with support for bonding to allow for delivered speeds of up to 4Gbps and includes Broadcom’s Full-Band Capture (FBC) digital tuning, which supports future IPTV applications.

Zoom licensed the Motorola brand name for broadband-related equipment and is hoping to grab more market share in a field dominated by more familiar brands including Arris, Ubee, and Netgear.

The unit is backwards-compatible with DOCSIS 3.0 and includes support for up to 32×8 DOCSIS 3 channels, which some cable operators are using to provide gigabit speeds.

The full feature set:

• DOCSIS 3.1 with fallback to 32×8 DOCSIS 3.0
• Full-band Capture Digital Tuning enhances speed and saves energy
• Works with any router, Windows or Mac computer, HDTV, or game station that has an Ethernet port
• This DOCSIS 3.1 modem supports Active Queue Management (AQM), which significantly reduces Internet latency.
• 4 GigE Ethernet ports with support for port bonding
• Vertical case saves space and enhances cooling
• High resistance to lightning and to power surges
• Future proof, including DOCSIS 3.1, DOCSIS 3.0
• 2 year warranty
• IPv6 next generation Internet addressing support
• Multi Processor Technology with ARM based Application Processor

The box comes pre-branded with Comcast’s XFINITY logo, which means it is a sure bet Comcast will support this modem. Consumers should verify if other cable operators will approve use of this modem before buying. It will be available for retail online sale by Walmart, Amazon.com, Target, Best Buy and MicroCenter as early as late May.

The Netgear CM700 is the target of a class action lawsuit filed in California.

As consumers increasingly spend money out-of-pocket to acquire their own cable modems to avoid leasing fees, alleged defects in those modems are spurring class action lawsuits to force manufacturers to fix the problems or issue refunds.

Two separate class action cases have been filed this month in Calfornia courts alleging “serious defects” in the Netgear CM700 and Arris SURFboard SB6190 — both newer DOCSIS 3.0 modems. But those modems are not the only ones affected by a serious firmware bug that can dramatically degrade internet performance.

Both modems rely on a relatively new Intel Puma 6 chipset, which some media outlets have also implicated in similar defects in a variety of cable modems including the Hitron CGNV4, the Compal CH7465-LG, and Puma 6-based modems like Virgin Media’s Hub 3 and Comcast’s top-end Xfinity boxes. Other newer modems branded by Linksys and Cisco also use the same system-on-chip and may also be affected.

The law firm of Schubert, Jonckheer & Kolbe, which is handling the Netgear legal case, says these cable modems may be affected:

• Arris SB6190
• Arris TG1672G
• Arris TM1602
• Super Hub 3 (Arris TG2492LG)  (commonly, Virgin Media)
• Hitron CGN3 / CDA / CGNV series modems:
• Hitron CDA-32372
• Hitron CDE-32372
• Hitron CDA3-35
• Hitron CGNV4
• Hitron CGNM-3552 (commonly, Rogers)
• Hitron CGN3 (eg CGN3-ACSMR)
• Hitron CGNM-2250 (commonly, Shaw)
• Linksys CM3024
• Linksys CM3016
• TP-Link CR7000
• Netgear AC1750 C6300 AC1900
• Netgear CM700
• Telstra Gateway Max (Netgear AC1900 / C6300) (Australia)
• Cisco DPC3848V
• Cisco DPC3941B / DPC3941T  (commonly, Comcast Xfinity XB3)
• Cisco DPC3939
• Compal CH7465-LG / Arris TG2492LG (commonly, Virgin Media Hub 3)
• Samsung Home Media Server

Customers of Comcast, Charter, and Cox in the United States are impacted, as well as Rogers and Shaw customers in Canada and Virgin Media in the United Kingdom. The faster your internet connection, the more likely you will notice the defect, which causes dramatic latency spikes and degraded internet performance.

Intel admitted there was a problem back in December, but ISPs have been slow to respond.

Intel acquired the Puma family of chips from Texas Instruments in 2010, and the latest — the DOCSIS 3.0-compatible Puma 6 – uses an Atom x86 processor designed to handle up to 1.6Gbps connections. Unfortunately, the engineers who developed the firmware have tasked the Atom CPU with too much work while it also copes with processing network packets on a high-speed internet connection.

As The Register reported back in December:

Every couple of seconds or so, a high-priority maintenance task runs and it winds up momentarily hogging the processor, causing latency to increase by at least 200ms and, over time, about six per cent of packets to be dropped. It affects IPv4 and IPv6 – and it spoils internet gaming and other online real-time interaction that need fast response times.

This problem is easily seen in two graphs provided to the Register by a reader in Phoenix who plugged in two different modems to his Cox Cable internet connection. The blue lines represent latency and the red lines are packet loss. The test was performed with an ICMP ping running 33 times a second to his ISP’s DNS server over a 30 minute period.

An Arris SB6183 cable modem using an older Broadcom-based chipset exhibits no problems. (Image: The Register)

The Arris SB6190 running the new Intel Puma 6 chipset shows significant and readily identifiable problems. (Image: The Register)

Online gamers are among the most likely to be affected by latency problems.

“I excitedly swapped out my Arris SB1683 Broadcom modem for the new SB6190 Intel one expecting gigabit performance and immediately noticed slower webpage loads,” one gamer told The Register. “During first-person gaming, I was getting killed way more often for no apparent reason. I looked at an eight-year graph of latency from my home logs, and was horrified. Swapping back to my SB6183 solved all the issues.”

Arris also confirmed the problem.

“Arris has been working actively with Intel to address the issue, which resulted in some SURFboard SB6190 users reporting latency concerns,” a spokeswoman for Arris said. “We plan to quickly issue Intel’s firmware updates to resolve any latency. We remain committed to providing the best broadband experience for all users of Arris devices and regret any inconvenience this issue caused.”

Unfortunately, regardless of how fast modem manufacturers issue updated firmware to resolve the problem, end users will not notice a difference until their cable operator pushes that firmware update to customers. You cannot update cable modem firmware on your own, and any effort to do so would be futile because your provider would automatically replace it with an older “approved” version as soon as the unauthorized firmware change was identified.

The lawsuits seek a jury trial and damages forcing the manufacturers to recall the modems and either replace them or issue refunds to all affected customers. Customers who own an affected modem who want to participate in the class action case can fill out this form for more information.

DOCSIS 3.1 is the latest standard for cable broadband. (Image courtesy: Diparth Patel)

DOCSIS 3.1 — the newest iteration of the standard that allows cable operators to deliver broadband over their hybrid fiber-coax networks — is performing better than expected, according to engineers at some of the largest cable companies in the country.

Multichannel News reports the new robust standard works “really well” even when cable infrastructure isn’t up to pristine standards.

“It [DOCSIS 3.1] works better than 3.0 in noisy plant,” said JR Walden, senior vice president of technology and chief technology officer of Mediacom. Walden adds it even performs well where cable operators oversell their network, packing too many customers on a congested node that would normally cause speeds to fall dramatically under the current DOCSIS 3.0 standard.

DOCSIS 3.1 is more efficient handling bandwidth available for broadband service and its ability to bond multiple channels together allows cable operators to boost internet speed tiers dramatically. Mediacom is currently deploying gigabit speeds across its entire network footprint, and the technology is backwards-compatible with DOCSIS 3.0 so cable networks can be upgraded without any disruption to customers.

Mediacom expects its costs to provision customers with broadband service across all speed tiers to drop because of DOCSIS 3.1, delivering the company “better economics.” Customer upgrades can also deliver additional revenue, and Walden claimed between 3-10% of Mediacom customers have already upgraded to gigabit speeds.

The Comcast XB6, one of the first DOCSIS 3.1 network gateways.

The biggest challenge found by early adopters of DOCSIS 3.1 isn’t the technology — it is the network gateways that connect cable modem service to in-home wired and wireless networks. DOCSIS 3.1-compatible gateways are still in short supply, and is essential if the customer is going to get the broadband speed they are paying for. The biggest bottleneck of all comes from in-home Wi-Fi.

Multichannel News:

“Having a very powerful WiFi device is critical” for DOCSIS 3.1, agreed Damian Poltz, VP of technology strategy and networks at Shaw Communications.

Comcast is trying to address this with the XB6, a full-featured DOCSIS 3.1 gateway that will also integrate speedy WiFi, ZigBee and other connectivity technologies.

For its initial D3.1 deployments, Comcast has been pairing stand-alone modems with a separate gateway to serve “thousands of customers.”

While acknowledging that such a set-up is not ideal, Jorge Salinger, VP of access architecture at Comcast, confirmed that Comcast is building versions of the XB6 that use Broadcom and Intel chipsets. He said Comcast is completing employee trials shifting toward customer trials and on to commercial deployments, which are expected to begin in the next month or so.

Customers without DOCSIS 3.1-compatible equipment will find speed tests reporting slower speeds than advertised. Several vendors are working on expanding the supply of network gateways and are making sure those devices can deliver robust Wi-Fi.

The cable companies most aggressive about DOCSIS 3.1 deployment have been Comcast and a variety of smaller national and regional operators like MidCo and Mediacom. Altice is upgrading Suddenlink customers to gigabit speeds using the current DOCSIS 3.0 standard and is scrapping its existing coax network for Cablevision customers, to be replaced with fiber-to-the-home service. Lagging behind will be Charter Communications, expected to be among the last cable operators to upgrade to DOCSIS 3.1 as it remains preoccupied with integrating Time Warner Cable and Bright House into its existing operations. Charter’s first priority is to complete all-digital upgrades for TWC and BH customers, expected to take up to two years to complete.

Fixed (wired) broadband is now the most important revenue component of the TV-Internet-Phone package.

Despite ordering 41 percent more downstream network equipment in 2015 than the year before, cable operators enjoyed a 3% drop in broadband equipment expenses, according to researcher SNL Kagan.

While your cable operator blames the cost of upgrades and usage growth for your latest broadband rate hike, cable company spending on broadband actually declined thanks to lower prices and more efficient broadband networks.

ARRIS, a major supplier of cable broadband equipment, also saw its revenue from equipment sales decline as cable operators used software virtualization to cut the price of DOCSIS channels over new, more efficient converged cable access platforms.

Cable operators are feeling heat in some markets from emerging fiber-based competitors, but the imminent arrival of DOCSIS 3.1 has made meeting those competitive challenges easy and less costly than ever before.

ARRIS closed out the year as the global revenue leader in broadband equipment, grabbing 53% of total revenue among providers of cable broadband infrastructure. ARRIS benefitted immensely from the focus of its primary North American customers, including Comcast and Time Warner Cable, on dramatically increasing throughput to stay competitive with Verizon FiOS, AT&T U-verse, and Google Fiber.

“The imminent availability of DOCSIS 3.1 linecards and full-spectrum channels won’t slow the continued purchase and deployment of current DOCSIS 3.0 channels as cable operators must continue to increase throughput to reduce the likelihood of churn among their broadband subscribers,” said Jeff Heynen, senior research analyst for SNL Kagan.

But the costs to deliver those service improvements are now so low, providers are enjoying actual declines in their annual expenses for equipment upgrades, while at the same time many are raising prices and introducing or increasing modem rental fees and usage caps.

Mediacom, perennially rated America’s dead-last cable company by Consumer Reports’ annual subscriber surveys, will invest $1 billion over the next three years to combat increasing competition from AT&T and other telephone companies by improving its broadband service.

The chief goal of the upgrades is to introduce gigabit broadband speeds for nearly all of Mediacom’s three million customers across 22 states. The initiative, dubbed Project Gigabit, will require Mediacom to push fiber closer to customers and businesses and will depend largely on DOCSIS 3.1 technology.

Mediacom is already providing gigabit service in several communities in Missouri, including Jefferson City, where it sells 1,000/50Mbps service for $149.99 per month, with discounts available to customers bundling it with other services. Mediacom has placed a data cap on its gigabit tier of 6TB a month, with an overlimit fee of $10 per 50GB. The Missouri systems bond 32 downstream channels using DOCSIS 3.0 technology, and customers report speed test results averaging 980/60Mbps. In other areas, many Mediacom systems will be upgraded to DOCSIS 3.1 service as part of the gigabit rollout.

“From the time we acquired our first cable system in March 1996, Mediacom’s focus has always been to offer the smaller communities we serve the same communications and video services that are available in America’s largest cities,” said Mediacom’s founder and CEO, Rocco B. Commisso. “Project Gigabit will allow us to go even further by giving our customers access to one of the fastest broadband networks in the world.”

In addition to speed upgrades, Mediacom also plans:

• Expansion of Mediacom Business’s high-capacity network inside downtown areas and commercial districts to create more “lit buildings” within the company’s footprint and bring tens of thousands of new business customers on-net with immediate access to fiber-based communications services;
• Extension of Mediacom’s deep-fiber residential video, Internet and phone network to pass at least an additional 50,000 homes;
• Deployment of community Wi-Fi access points throughout high-traffic commercial and public areas across Mediacom’s national footprint.

Consumer Reports subscriber survey results for Mediacom

Customers hope the service improvements might finally lift Mediacom out of last place in consumer satisfaction scores, a rating it has maintained for several years.

Mediacom caps its Internet service and penalizes customers with a $10 per 50GB overlimit fee.