Is your ISP secretly throttling your internet speed? Here’s how to find out

Congestion-management system was deployed after 2008 BitTorrent controversy.

Comcast disabled throttling system, proving data cap is just a money grab
You'll be seeing a lot more in this area - we won't rest until we turn this back into something we can universally be proud of. If congestion is not really a issue then why before my area was recently upgraded to 16x3 my speeds would tank every night like clock work? Run all the tests and compare the results to see if anything stands out. State governments are also taking action—the State of Washington on Monday became the first US state to impose a net neutrality law that replaces the nationwide regulations repealed by the FCC. VPN technology let them create a virtual company network over the internet that nobody could crack into from the outside. One of the best options, if possible, is to switch to another ISP.

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How To Stop Comcast From Throttling Your Internet – The Full Guide

According to some Comcast technicians, who were brave enough to tell the truth, these Sandvine boxes are installed at the cable modem termination system.

As a result, it is virtually impossible to seed a file, especially in small swarms without any neighboring Comcast users. The good news is that there are several ways to fight back and get BitTorrent up and running again. Robb Topolski, a networking and protocol expert summed up some of the workarounds that reportedly solve the throttling issues. Quite a few Comcast users report that forcing protocol header encryption completely eliminates the problems.

This is the easiest solution since most BitTorrent clients support encryption. Please note that simply enabling encryption is not enough, it has to be forced. More details on how to do this can be found over here. When downloading, make sure that you have met your uploading goal by the time that the download completes. The easiest way to accomplish this is to set a download rate slower than the uploading rate.

This of course is not an optimal solution because your download will never be faster than you upload speed. Some people suggested that setting your firewall to drop RST packets could be effective, however, this is not the case. Reporting the issue to Technical Support. And if someone is breaking a rule report it! News Think Comcast is "throttling" you? New automated check if congestion management system is active self. This is available in the Speed Experience site at https: This comment has been overwritten for security purposes doxing, stalking, harassment, and profiling for the purposes of censorship.

My speculation is that they will continue to have them where they can; as in, they have no competition. Where I'm at, Baltimore, they don't have caps and probably never will because of FiOS being in the area as well.

Since FiOS has a "cap" around 77TB , Comcast would never survive with their piddly caps if they were to implement them. This system acts on individual customers i. This has been approved by the FCC, as it only temporarily moves packets into a lower priority queue during high-utilization periods IFF that user is the one causing the high-utilization. This is considered "reasonable network management".

The system as it stands today has been in place for four or five years now. Everything else on the network is Nx10G, and NxG. I just wanted to stop by to say that the OP is one of the good guys.

I am not a residential customer, but he did help me out with an enterprise issue a few years back. You can read about some of the cool stuff he has helped create out there while also being a member of the internet society. Everyone knows Comcast has done probably more than their fair share of shitty stuff in the past some probably ongoing , has fairly horrible customer service, and plenty of problems to solve. They have however been a leader in technology weather its ipv6, getting rid of analog to free up spectrum for D3, offering the fiber services for mbit and now 2gbps, and I am sure the OP and his team have been the lead on several of these projects.

If anyone has any useful feedback regarding this or other high scale internet items for Comcast this would be a good place to do it. And, more than anything else, I "get" in my bones how very broken our customer experience is. You'll be seeing a lot more in this area - we won't rest until we turn this back into something we can universally be proud of. Every time someone claims they are being throttled a Comcast Employee will jump in the thread and say "Comcast does not throttle anyone's connection" before proceeding to try and assist them fixing their issue.

Is this Comcast way of saying that they do in fact throttle peoples connections from time to time to make the internet 'fair' for everyone and these Comcast employees have just been talking out of their ass this whole time?

Now that last part comes off a bit rude and I appreciate that these people have tried to assist us customers that have had issues in the past. Yet in most if not all the topics that come up about certain people being throttled they always jump the gun and say that Comcast doesn't throttle.

That it must be something else causing the issue. Yet here is evidence straight from Comcast that suggest otherwise. That they do in fact throttle some of their customers at certain times, probably all heavy internet user customers at one time or another and the times when we have had no issue with our internet at all and then the next day we do have an issue, especially being hard wired into our modems, that it was in fact throttling being the cause of the issue and not something else.

A lot of the confusion comes from what posters mean when they say "throttled" and what we do for network management. We never reduce the amount of bandwidth available to you or configured on your modem. What happens is that during periods of high use on your CMTS, when you are also using a large amount of bandwidth, is that your packets get placed in a lower priority queue. And then if the buffer gets full, those are the ones that wait.

So even if you are in a network management event, there still a very high possibility that you won't even notice it.

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