ant24x's profile

Regular Visitor

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7 Messages

Monday, October 21st, 2024 9:28 PM

I believe my Internet is being throttled during specific times of the day

Hello,

I am someone who broadcasts on Twitch. And 5 out of the last 6 days, between around 8 PM and 10 PM at night, the upload bitrate of my broadcast tanks, and I start to drop massive amounts of frames.

I'm reluctant to call support for this, because it can be tough to get someone on the phone who even understands what I'm talking about, so I'm hoping an employee here can look in to this.

I can supply graphs in which long broadcasts have no problem at all for many hours, and yet right around this 2-hour window, a problem inevitably occurs.

Edit to add more information:

October 15: Broadcast started at around 5:45, upload tanks and massive frame drop at 7:50
October 16: Broadcast started at around 6, upload tanks and massive frame drop at 7:50

October 17: Broadcast started at around 6, upload tanks and massive frame drop at 9:13 

October 18: Broadcast started at around 1:15, and goes for 8 hours with zero frame drops, until 9:15

October 20: Broadcast started at around 6, upload tanks and massive frame drop at 10:13

Here is an imgur album, with this information graphed from Twitch Inspector: https://imgur.com/a/dCihHdS

After the first night, I tried resetting my router and modem. I also lowered my max bitrate from 6000 kbps to 5000 kbps. I tried using different Twitch servers around the NE. Nothing helped.

I am actively broadcasting while this happens, with hours upon hours before it does, and nothing changes about the broadcast. I am playing a video game and streaming it to Twitch. No other people use my internet, and nothing else is consuming my bandwidth at this time to cause such an issue.

2nd Edit:
October 21st: Broadcast started at around 6, upload tanks and massive frame drop at 8:54

Contributor

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35 Messages

1 month ago

Your issue could be numerous things. Cable modem signal problems can sometimes manifest themselves as periodic occurrences that start/stop based on some outdoor physical problem (certain times of the day the temperature/humidity rises/falls to a certain level that triggers noticeable issues). But when the problem is happening, if you aren't noticing any other website or service having problems, then the problem is likely the interconnection between Comcast and Amazon (who owns Twitch). Problems h often happen at points like this because the link between the 2 companies is over-saturated. In that case, there is nothing you can meaningfully do to solve this. You will have to wait until that link is repaired (likely meaning upgraded to a higher capacity, likely meaning money changing hands between the companies). Comcast has a long history of extorting peering partners like this for money. In the past I was told by senior technical Comcast personnel that the "Business" class service has a higher priority, but i have no idea if that would apply in the case of over-saturated peering, and I have no way to verify what that person told me is truly correct.

Good luck!

Expert

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107.1K Messages

1 month ago

@train_wreck 

And I was told by many CC insiders over the years that Residential Class and Business class use exactly the same infrastructure, regional (CRAN) routing, and backbone routing. Who knows...

Official Employee

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2.2K Messages

1 month ago

Greetings, ant24x! Thanks for taking the time out of your day to reach out about your connection. We want that working great all the time and are happy to help! Are your streams dropping all the way during this time or it just lags? Are you wired from a PC to the modem? 

Regular Visitor

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7 Messages

It lags for the viewers, but does not end completely.

When it's working correctly, my bitrate is steady at 5000 kbps, but when it happens, I go below 1000 kbps, and I drop anywhere from 20-30% of the frames.

For what it's worth, I tested a YouTube broadcast tonight, and it also happened with that stream as well, at around 8:40 PM, so it doesn't seem to be specific to Twitch.

PC is wired.

(edited)

Official Employee

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1.6K Messages

@ant24x Very interesting I would be wondering if your power levels are staying steady and if you see a slowdown in actual speed when this occurs. Have you checked your signals when this occurs? Could you please share that here making sure to remove any personal information like MAC address or IPs. So we can take a closer look at your connection while it is occurring.

{Edited: added links and corrected spelling}

(edited)

I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Regular Visitor

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7 Messages

This is the table I found in my modem's admin panel. These aren't when the problem is occurring, I'd have to check that later today, but I just wanted to check if this is what you are looking for, since they aren't labeled exactly like in the article you linked. However, it's all that was available within the admin panel of my modem.

External link to image: https://imgur.com/CHFrbKC

Official Employee

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911 Messages

Thank you so much for sharing those details with us @ant24x! I would to take a deeper dive into the account with you directly.  Can you please send us a DM?

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I am an Official Xfinity Employee.
Official Employees are from multiple teams within Xfinity: CARE, Product, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Please, mark a reply as the Accepted Answer.tick

Expert

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107.1K Messages

30 days ago

@ant24x @XfinityAdrienne 

Please circle back here and post any possible solutions for the issue here in these open public forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.

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