Comcast has quietly dropped its internet congestion management system, designed to slow down its heaviest users, claiming it has gone unused for more than a year and was no longer needed.

Originally spotted by readers of DSL Reports, the announcement referenced the system that replaced Comcast’s speed throttle that intentionally degraded peer-to-peer network traffic after Comcast claimed it was unfairly impacting its other customers:

As reflected in a June 11, 2018 update to our XFINITY Internet Broadband Disclosures, the congestion management system that was initially deployed in 2008 has been deactivated. As our network technologies and usage of the network continue to evolve, we reserve the right to implement a new congestion management system if necessary in the performance of reasonable network management and in order to maintain a good broadband Internet access service experience for our customers, and will provide updates here as well as other locations if a new system is implemented.

Comcast’s “protocol-agnostic” network management technology, designed by Sandvine and introduced in 2008, measured customer traffic and singled out heavy users for speed reductions when Comcast’s network was saturated with traffic. Customers were unaware if they were deemed heavy users or if their traffic was targeted for temporary speed reductions. Comcast relied on the technology, along with the introduction of a 250 GB nationwide data cap, to control network traffic and stall the need for expensive node-split upgrades.

Comcast claims the introduction of DOCSIS 3.0 (starting in late 2008) and DOCSIS 3.1 (2017) gradually eliminated the need to maintain the congestion management system, because channel bonding vastly expanded available internet bandwidth. What remains in place in most Comcast service areas is Comcast’s controversial 1 TB usage cap. The company initially claimed its data caps were part of a network traffic management strategy, but more recently the company claims it collects more from heavy users to compensate for its broadband investments.

Usage caps for one and all.

Comcast, which insists on placing a 1 TB (1,000 GB) usage cap on most (but not all) of its broadband customers, is predicting explosive growth in broadband usage as customers connect more devices to their internet connections.

“[If] you look at in terms of just overall consumption, just at a high level, you look at the top 10% of our customers, just how much they use, they are using 20 or more connected devices,” said Comcast Cable president and CEO David N. Watson on a company conference call. “And it’s a tremendous amount of consumption that we have. And I think that’s where the market is going. There is going to be more consumption, more connected devices.”

Comcast’s growth forecasts suggest the company schedules regular network upgrades, although it has only adjusted usage allowances three times in the last decade:

• Comcast introduced a 250 GB usage cap in 2008 that carried no overlimit penalty but persistent violators lost their Comcast broadband service.
• Comcast raised the cap 300 GB in 2013 and implemented an overlimit fee.
• Comcast raised the cap to 1 TB in 2016 and began promoting its Unlimited Data Option as an insurance policy against bill shock from overlimit fees.

“It is important to know that more than 99 percent of our customers do not use a terabyte of data and are not likely to be impacted by this plan, so they can continue to stream, surf, and download without worry,” claims Comcast on its website. As of December, 2017, “Xfinity Internet customers’ median monthly data usage was 131 GB per month during the past six months.”

Such claims should make customers wonder why Comcast needs a usage allowance of any kind if these claims are true. A 2016 study suggests Comcast may have more heavy users than it is willing to admit. The research firm iGR found average broadband usage that year was already at 190 GB and rising. There is no third-party verification of providers’ usage statistics or usage measurement tools, but there are public statements from Comcast officials that suggest the company faces a predictable upgrade cycle to deal with rising usage.

“We increase the capacity every 18 to 24 months,” confirmed Watson.

Upgrading is also a crucial part of Comcast’s ability to charge premium prices for its internet service.

“Not all broadband networks are created equal,” Watson said. “If you are providing a better solution in broadband, your pricing can reflect that.”

For Comcast customers using a terabyte or more in a month, after two courtesy months of penalty fees being waived, Comcast will recommend signing up for its Unlimited Data Option, which costs $50 a month. If you do not enroll and exceed your allowance a third time, the company will bill you overlimit fees: $10 for each additional block of 50 GB of usage. The maximum overlimit penalty in any single month is a whopping $200.

Critics of Comcast’s data caps point out that Charter — the nation’s second largest cable operator, has no usage caps at all. Optimum (Altice) also does not impose data caps. Those that do often copy Comcast’s data allowances and overlimit fees exactly — all to deal with so-called “data hogs” that the companies themselves claim represent fewer than 1% of subscribers.

Bad results for Frontier DSL in Nevada. (Source: Elko Residential Broadband Survey)

Only six Frontier Communications customers surveyed in Elko, Nev. gave the phone company an “A” for its DSL service, while 42% flunked Frontier for what they considered unacceptable internet service.

The Elko Broadband Action Team has surveyed residential and business customers about broadband performance and found widespread dissatisfaction with Frontier Communications over slow connections and service interruptions.

“I’m pretty disappointed in them,” said Elko councilman John Patrick Rice.

Businesses and residential customers were in close agreement with each other rating Frontier’s service, with nearly 87% complaining they endure buffering delays or slowdowns, especially when watching streaming video. When browsing web pages, nearly three-quarters of surveyed customers still found service lacking.

Among the complaints (Res)-Residential (Bus)-Business:

• Service interruptions: 74.43% (Res)/79.69% (Bus)
• Too slow/not receiving advertised speed: 72.16% (Res)/65.75% (Bus)
• Price: 63.64% (Res)/37.5% (Bus)
• Customer Service: 38.07% (Res)/45.31% (Bus)

The Nevada Attorney General’s Bureau of Consumer Protection received a steady stream of complaints about Frontier’s DSL service in the state over the past year.

Answering the survey question, “would you be interested in faster download and upload speeds at prices that are somewhat comparable to what you are paying now?” 97.87 percent of residential respondents said yes.

Frontier representatives responded to the survey results at a March 27 Elko City Council meeting.

“Frontier did recognize it could improve upstream and downstream flow and educated the council and the public on some of the issues,” Elko assistant city manager Scott Wilkinson said.

The Federal Communications Commission is pushing hard to free up additional spectrum in some unlikely extremely high frequency ranges — some at 95 GHz or higher, for the next generation of wireless services.

Just a year ago in 2017, the FCC wrapped up its latest spectrum auction for the higher end of the UHF TV band, to be repurposed for mobile service use. But now the agency is seeking to find and reassign underused spectrum in much higher frequency bands that could be used for services like 5G wireless, machine-to-machine communications, intelligent road and vehicle networks, and other uses yet to be invented or envisioned.

FCC Commissioner Jessica Rosenworcel made it clear that smart spectrum allocation was critical for next generation wireless services.

“The point is the list is long — and we are looking at midband and millimeter wave to power the 5G future,” Rosenworcel said. “The propagation challenges are real, but so is the potential for capacity with network densification. Of course, what we need to do next is get these airwaves to market and unconditionally hold an auction this year.”

The FCC is contemplating auctions covering these frequencies in 2018:

3.5 GHz

Widely expected to draw the most interest, the Citizens Broadband Radio Service band was originally intended primarily for unlicensed users, but the wireless industry has lobbied heavily to get much of this spectrum reassigned for traditional long-term licensed use. Although very high frequency, the 3550-3700 MHz “innovation band” will have plenty of wide range of frequencies open for wireless data and mobile services. The wireless industry wants to deploy LTE service on this band, but they will likely compete with cable operators that are seeking their own stake of frequencies to launch their own wireless services.

This band will likely support last mile wireless connections at gigabit speed, fixed wireless broadband, and even in-home Wi-Fi that is significantly better than what you have now.

Because the band is so attractive, several different users are competing over who will be portioned what spectrum. The cable and phone companies want more for themselves, but other users, including consumers, want to reserve enough spectrum for unlicensed applications. The concern is deep pocketed companies may crowd out innovators and start-ups.

3.7 to 4.2 GHz

Some consumers may have accessed services on these frequencies without ever realizing it. This is the home of the “C-Band,” recognizable to any home satellite dishowner of the 1980s and 1990s. This range of frequencies is set aside for line-of-sight, very low powered satellite television — the kind that used to require a 10-12 foot wide satellite dish in the backyard to receive. FCC Chairman Ajit Pai wants to open the band up to be shared with 5G wireless broadband, which has caused considerable controversy among satellite users who fear devastating interference.

There are proposals and counter proposals from the satellite industry and wireless companies over how to manage sharing this band. Most are coalescing around the idea of sequestering 100 MHz of spectrum at the low-end of the band and using 3700-3800 MHz for high-speed wireless broadband. Some want satellite operators to clear out of this section of frequencies voluntarily, others propose compensation similar to what was given to television stations to relocate their channel positions. Google is pushing for a plan that would offer mobile 5G service in large urban areas and 25 Mbps – 1 Gbps fixed wireless broadband in rural and residential areas.

But satellite companies and many satellite users are fearful of the impact of interference. Because satellite signals use very low power transponders on the satellite, ground based wireless broadband interference could wipe out satellite reception.

Tom Taggart, who owns several radio stations in West Virginia, says sharing spectrum was tried before and did not work well.

“This band, years ago, was shared with AT&T and other telcos for point-to-point long-distance links. Fixed, licensed paths that could be plotted and protected against for satellite installations,” Taggart told Radio World. “Our studios are 1,500 feet from an old MCI tower, at one time we had a metal screen behind our satellite dish to protect against ‘back-scatter’ from a path aimed away from us. Still, we had to convince MCI to shut down one channel so we could pick up a program from Premiere [a radio network distributing programming on satellite].”

Some industry plans propose registering C-Band satellite dishes, at a cost of $600-$1,600 per site, which would allegedly protect them from interference by requiring wireless broadband services to steer clear of the area.

“But I am not even sure what kind of broadband services are proposed,” Taggart said. “One might assume these would be omnidirectional sites, like a typical cell site. Even with some clever computer-engineered directional patterns, reflections off hillsides, billboards, buildings would be enough to overwhelm the tiny satellite signal. However, other articles described these services as ‘mobile.’ Even if my dish is registered, how can I resolve interference problems from a mobile device?”

The debate rages on because the frequencies involved, next to the even more popular CBRS band, are highly coveted.

4.9 GHz

After the events of 9/11 in 2001, the FCC has prioritized public safety communications, in hopes of improving the interoperability of different first responders’ portable radios. At that time, fire agencies could not easily talk to police, ambulance crews, or in some cases other fire crews arriving from different departments miles away.

Many agencies contemplating use of this band discovered equipment that supported 4.9 GHz was hard to find and extremely expensive. Most public safety agencies seeking grants or other funding to improve their communications equipment opted to transition to digital P25 networks that operate on much lower frequencies and use equipment that is now widely available and, in comparison, much cheaper. Many agencies are conservative about using new technology as well, concerned a communications failure could cost the life of a fire or police responder. As a result, of the 90,000 organizations certified for licenses in this band, only 3,174 have been granted. That represents a take rate of just 3.5%. The band, as one might expect, is effectively dead in most areas, underutilized in others.

“As the demand for wireless services continues to grow, it is imperative that the FCC takes steps to ensure underutilized spectrum bands are used efficiently,” said FCC Commissioner Mignon Clyburn. “This is as true for spectrum allocated to public safety as it is for the bands used to support commercial wireless broadband services.”

FCC Commissioner Michael O’Rielly is convinced wireless companies like AT&T and Verizon could use the frequencies more efficiently.

“It has been 16 years since the 4.9 GHz band was allocated to the public safety community, and it is still woefully underutilized,” said O’Rielly. “That is not sustainable in an environment in which every megahertz of spectrum, especially below 6 GHz, needs to be fully scrutinized and maximized in quick order. While the Commission’s original allocation was more than likely well-intentioned, it is way past time to take a fresh look at this 50 megahertz of spectrum.”

Although higher than 3.5 GHz, engineers believe there is a very credible case to be made to use the available spectrum for 5G fixed wireless services, delivering broadband at speeds up to 1 GHz from a small cell located nearby. It would have to be. At these frequencies, virtually anything blocking the line-of-sight between the antenna and the user will block the signal as well. With almost no constituency defending the 4.9 GHz turf, it is expected it will be repurposed for wireless broadband in areas where it isn’t in use for public safety communications.

24/28 GHz

Although the 28 GHz band has many licensed users already, the 24 GHz band does not, and the wireless industry is interested in grabbing vast swaths of spectrum in this band for 5G home broadband. Known as “millimeter wave spectrum,” these two bands are expected to be a big part of the 5G fixed wireless services being planned by some carriers. Verizon acquired Straight Path late in 2017, which had collected a large number of licenses for this frequency range. Today, Verizon holds almost 30% of all currently licensed millimeter wave spectrum, an untenable situation if you are AT&T, T-Mobile, or Sprint. T-Mobile has been the most aggressive seeking more spectrum to compete with Verizon in this frequency range, and has purchased almost 1,150 MHz covering Ohio for use with a 5G project the company is working on.

39 GHz

FiberTower, now owned by AT&T

This band might as well be called “the controversial band” because AT&T made moves on these frequencies even before the FCC got around to discussing an auction for this band, likely also to be used for 5G fixed wireless. FiberTower originally held hundreds of licenses for wireless spectrum for several years, but did little with them, leading to suggestions the company was either hoarding the spectrum to resell to someone else or was incapable of deploying a network that used the frequencies. The company declared bankruptcy in 2012, eventually emerging in the spring of 2014 just in time to watch the FCC uphold the decision of its Telecommunications Bureau to cancel 689 of FiberTower’s licenses for failure to use them.

In February 2018, AT&T completed its acquisition of FiberTower for $207 million. According to AllNet Insights & Analytics, AT&T acquired more than 475 of FiberTower’s 39 GHz spectrum licenses, raising eyebrows among shareholders who lost their investments in FiberTower after it declared bankruptcy. Hundreds of the spectrum licenses that came with the AT&T deal were given a value of $0.00, allowing AT&T a sweetheart deal and shareholders hoping to recover more money from the bankruptcy liquidation extremely upset. In fact, had FiberTower remained in bankruptcy, it would eventually have surrendered all of its licenses, which would then be put up for auction by the FCC and would likely command much higher value among bidders. Verizon effectively paid triple the price for what AT&T got for a song in the FiberTower acquisition. Even more remarkable, the FCC approved the acquisition by AT&T despite the obvious fire sale price, and has ignored the consequences of what could come from an AT&T/Verizon duopoly across large swaths of 5G frequencies.

Eshoo

That brought a rebuke from Rep. Anna Eshoo (D-Calif.) who accused both Verizon and AT&T of flipping public property for private gain.

“The FCC’s policies unambiguously required Straight Path and FiberTower to forfeit their unbuilt spectrum licenses,” Eshoo wrote. “But rather than auction the reclaimed spectrum and promote timely deployment, the FCC’s Wireless Telecommunications Bureau reached ‘resolutions’ with Straight Path and FiberTower than allowed them to profit handsomely from their wrongdoing. Following the ‘resolution,’ Straight Path sold its assets to Verizon for nearly $3.1 billion, and FiberTower is estimated to have sold its assets to AT&T for roughly $2 billion.”

In reality, AT&T acquired FiberTower for $207 million — a fraction of the amount of the estimated value of the spectrum Eshoo used in her estimate.

“The Bureau’s decisions also further concentrated critical input resources in the hands of the two dominant wireless incumbents,” Eshoo continued. “The purchasers of the public assets that Straight Path and FiberTower once held, Verizon and AT&T, already control a disproportionate amount of other critical spectrum available for immediate deployment. Up until recently, the industry had an imbalance in favor of these companies in low-band spectrum that lasted for decades. The FCC now risks going down the same wrong path with high-band spectrum should the Commission continue down this course. Allowing Straight Path and FiberTower to ‘flip’ public assets for private gain does nothing for taxpayers, but does much to further entrench the dominant incumbents’ longstanding spectrum advantage over their rivals.”

95+ GHz

The FCC has not regulated frequencies above 95 GHz, but as technology advances, there is growing interest in utilizing spectrum that many believed would be essentially unusable for communications services. Right now, most frequencies in this range are used by environmental satellites and radio astronomy. At these frequencies, signals would be absorbed by the skin and attenuated significantly by things like high humidity’s haze or fog. Still, there are proposals under consideration to open up a small portion of spectrum for unlicensed home users for things like indoor wireless routers.

The key policy priority here will be to protect existing users from any hint of interference. But with vast amounts of unused frequencies in this range, it shouldn’t be difficult to keep competing users apart.

Nathan Gray woke up one morning this month and received an alarming notification from Comcast, his internet provider, claiming he had exceeded his Comcast terabyte data cap and was being billed an additional $10 for a 50 GB allotment of extra data.

“This has never happened before and I was only six days into my monthly billing cycle, so I assumed it must be a mistake,” Gray told Stop the Cap! “But Comcast told me it wasn’t a mistake.”

Gray was hardly alone. One month earlier, “Bogreenwoo” discovered his family had blown the roof off their internet usage, exceeding 1 TB by the middle of the billing cycle, with more usage piling up hour after hour.

“Xfinity was adding 50 GB blocks every day at $10 each and calls to tech support were no help,” he shared on Comcast’s customer support forum.

Similar complaints are brought up on that forum at least weekly, if not more often. Comcast counterclaims that usage exceeding 1 TB a month is so rare, it represents only about 1% of its customer base. But customers with huge internet bills from Comcast who stumble their way to the company’s support forum strongly dispute that notion.

“Well good luck with finding a solution or even finding anyone at Comcast who cares or anyone anywhere else as far as that goes,” shared “Amaasing.” “I have had this issue more than once and have talked with every vice president of customer service and had discussions with the security department and even filed a complaint with the FCC and nothing happened at all.”

Some users, like Amaasing, have received so many bills stung with overlimit fees they now turn their computers off in the evening and unplug their cable modems. In many cases the usage keeps rising anyway.

“Today when I logged in, I had apparently used 196 GB yesterday,” Amaasing wrote. “196 GB in 24 hours?  Seriously?”

For most customers in this predicament, Comcast is quick to blame customers for the usage and leave the detective work up to them. Customer support will not entertain suggestions their usage meter is inaccurate. In their view, it is more likely someone is illicitly connected to your Wi-Fi and stealing your service or you are running some bandwidth-heavy application or your computer has been hijacked by hackers or pirates.

While you are left to investigate which of these might be true, Comcast is free to continue billing your account overlimit fees.

Comcast claims it will forgive customers who exceed their data allowance twice ‘a year’:

“We’ll provide you with two courtesy months, so you will not be billed the first two times you exceed a terabyte while you are getting used to the new data usage plan. This means that you will only be subject to overage charges if you use more than a terabyte for a third time in a 12-month period. If you use more than a terabyte two times or less in a 12-month period, your courtesy month balance will reset to two at the end of these 12 months. However, if you use more than a terabyte three times in a 12-month period, no more courtesy months will be given.”

After “courtesy months” expire, you are on the hook for whatever excess usage Comcast determines you have consumed. Some Comcast customers assume the courtesy month counter resets each calendar year, but in fact it only resets after 12 consecutive months of staying within your allowance limit.

What causes “excess usage” is anyone’s guess. Comcast customers have documented several recent causes why they have mysteriously started blowing through their 1 TB data allowance:

1. The growing prevalence of 4K video, the highest streaming video quality available through online video streaming services can be responsible for a sudden spike of usage. Netflix and other services that support 4K video content with high dynamic range can eat up 7 GB to 10 GB of data per hour. Many services allow you to downgrade your video settings with minimal quality loss. We recommend trying settings typically labeled 720 or 1080 — the lower the better if you are running up against your allowance.
2. Third party backup and cloud storage tools: That online backup or cloud storage service you are using may be malfunctioning. There are several reports about Amazon Drive having problems recently, causing files to be repeatedly transferred and driving up usage to several hundred gigabytes a day in some cases. If you use Amazon Drive and have seen a huge spike in usage, try uninstalling or turning off the service for several days and see if usage falls dramatically. Other file and computer backup services that store your data in the cloud can consume a lot of data, especially when installing them on a new computer for the first time. Even some cell phone backup services designed to store your photos in the cloud can malfunction and repeatedly try to send the same photos over and over. Disable these tools for several days and check your usage levels.
3. Third party usage: Family members doing something bandwidth intensive can also be responsible for dramatic usage spikes. Although downloading video game updates can consume very large amounts of data, game play itself typically has little impact on your data usage. Check with family members to see if they are watching high bandwidth video or have installed a file backup service. Less common is an uninvited guest on your Wi-Fi network. Comcast often points to Wi-Fi security as a major problem when a neighbor gains access to your internet connection to download huge numbers of files. You can change your Wi-Fi password to help lock down your network. Make sure not to use plain word passwords — use a mixture of letters, numbers, and symbols.
4. Comcast’s meter is simply inaccurate. There is no independent third-party verification or government oversight of Comcast’s usage meter. Most ISPs hire a third-party contractor to design and implement their data measurement meters, but those contractors are ultimately answerable to the provider — not to you, giving little peace of mind to consumers who are forced to trust their cable company to be honest. Our country’s Founding Fathers placed great importance on accurate measuring and weighing tools, so much so it is addressed in Section VIII of Article I of the U.S. Constitution. That section gives authority to Congress to establish accurate and regulated measurement tools. Each state has their own way of managing this, often with a bureau of weights and measurements that independently verifies and certifies — with a tamper-evident sticker, the accuracy of the food scale at your local grocer or the gas pump at a nearby service station. Comcast has resisted similar third-party oversight for its usage meter. But considering the company’s overlimit fees can add a substantial sum to customer bills, having this kind of oversight seems appropriate.

Avoiding the usage cap: Comcast ironically provides its own insurance plan to protect customers from its own arbitrary data allowance. For peace of mind, Comcast collects an extra $50 a month ($20 for gigabit speed DOCSIS 3.1 plans) if you wish to waive the data cap altogether. Data caps are completely under the control of Comcast and are especially prevalent in regions of the country where a lack of competition exists. But Comcast’s arguments in favor of data caps don’t wash at the nation’s second largest cable company – Charter Communications, which markets its internet service as having no data caps at all. In fact, Charter CEO Thomas Rutledge never saw much use for data caps at Charter or Cablevision, the company he used to head.

Debunking arguments for usage caps at Comcast and other ISPs. (5:46)