[ale] Slightly OT: AT&T Fiber upload failures.

[Jim Kinney]

I checked my fiber perf and it was all over the place - 2ms-500ms latency.
The plot looked more like an active heart attack than competently managed
networking. But my 1Gb line isn't uploading streaming video.

-- 
James P. Kinney III

Every time you stop a school, you will have to build a jail. What you gain
at one end you lose at the other. It's like feeding a dog on his own tail.
It won't fatten the dog.
- Speech 11/23/1900 Mark Twain


*http://heretothereideas.blogspot.com/
<http://heretothereideas.blogspot.com/>*

On Mon, Jun 29, 2026, 10:56 AM <neal at mnopltd.com> wrote:

> Thanks for the pointer.  I understood the AT&T Business Fiber SLA to be
> 37ms max latency.   We have typically seen 200, and sometimes over 500.
>
> Thus far I haven't gotten past level 2 tech in Bangalore.    AT&T managers
> are avoiding me; perhaps just blocking me.
>
> That's kinda why I wanted to figure out how to apply for a credit on our
> bill due to them not meeting the SLA.  Figured that MIGHT get someone's
> attention on this continent.
>
> On 2026-06-28 16:51, Jim Kinney wrote:
>
> See if google has an iperf3 reciever. I've found the tool tracepath to
> give very good info about all the hops between start and end points.
>
> Ask to speak with their manager because the SLA is not being met. It
> doesn't seem to be on your end but between your entrance to AT&T and their
> exit point.
>
> Test against here:
> https://speed.cloudflare.com/
>
> The cloudflare test is something AT&T will care about as they also rely on
> them.
>
> And there's other testing sites as well.  Get the numbers and the data
> from tracepath so you can show a rout problem.
>
> Thanks for being Tier3 training support for AT&T . <facepalm>
>
> --
> James P. Kinney III
>
> Every time you stop a school, you will have to build a jail. What you gain
> at one end you lose at the other. It's like feeding a dog on his own tail.
> It won't fatten the dog.
> - Speech 11/23/1900 Mark Twain
>
>
> *http://heretothereideas.blogspot.com/
> <http://heretothereideas.blogspot.com/>*
>
> On Sun, Jun 28, 2026, 3:11 PM Neal Rhodes via Ale <ale at ale.org> wrote:
>
> We've been chasing AT&T on streaming upload failures on a Business Fiber
> setup for about 6 weeks now.
>
> We've been streaming Sunday Morning services to Youtube for years on
> Comcast.
>
> Switched to AT&T in March.   And........ increasingly were having Youtube
> abort the stream.
>
> We were sending 60fps video, which amounted to about 6mbps; this is on a
> 20mbps Fiber connection.
>
> We dropped that to 30fps video, which is about 3.5mbps.
>
> I ran the Speedtest CLI every 5 minutes from a script for several 24 hour
> periods, and found Max Upload Latency all over the highway, from 5ms to
> 528ms.   (BTW, we understand the upload SLA to be 37ms)
>
> Granted, the Speedtest test tries to shove 20mbps upload; whereas we are
> trying to get consistent 3.5mbps.  this is to an AT&T Speedtest host in
> Atlanta.
>
> I'm getting close to nowhere arguing with AT&T.    I recently took the
> church completely offline, disconnected our Unifi router, connected
> directly to the AT&T Calex box, ran the same tests, had roughly the same
> results.
>
> AT&T level 2 support is asking ME to tell THEM where in the hops from us
> to THEM that THEY are bottlenecked.     Kinda hard, since MTR or TraceRoute
> gets 2 hops in, and then it's just stars with no data.  'cause their
> equipment isn't replying to me.
>
> Anyone have ideas, either on troubleshooting, or finding anyone within
> AT&T that actually knows anything about testing their own equipment?    I
> was wondering about iPerf3, if they had a server for it.   It would be
> better to test a realistic 4mbps upload.
>
> Anyone know the process to file a formal request for a failed SLA credit
> with AT&T?   The minimal docs I have apparently are no longer correct?
>
> regards,
>
>
> Neal
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> https://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists at
> http://mail.ale.org/mailman/listinfo
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mail.ale.org/pipermail/ale/attachments/20260629/76111e47/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 2717292b.png
Type: image/png
Size: 290015 bytes
Desc: not available
URL: <https://mail.ale.org/pipermail/ale/attachments/20260629/76111e47/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 2717292b.png
Type: image/png
Size: 290015 bytes
Desc: not available
URL: <https://mail.ale.org/pipermail/ale/attachments/20260629/76111e47/attachment-0003.png>