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AT&T Fiber in the SF Bay Area is flipping bits

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Re: AT&T Fiber in the SF Bay Area is flipping bits

#11
I am a new AT&T fiber customer and have noticed that connections to random places seems slow. New connections in general. There seems to be no pattern, even across udp or tcp. I assumed there was just bad connectivity issues. Any more details available on what is happening? Like, what bits are getting flipped?

I might have to go back to the local cable company if this continues.

Anyone experiencing this in SoCal?

Re: AT&T Fiber in the SF Bay Area is flipping bits

#14
When AT&T first did their Fiber rollout in SF, one of the things I remember was they charged you $10 extra if you didn't want them to MITM all your connections to insert JavaScript pointing to their own ads.

They rolled this back when folks complained, but I wonder if the relevant infrastructure is still sitting around and mangling packets.

I would probably expect this to be some network card or cable or connector is failing though...

Re: AT&T Fiber in the SF Bay Area is flipping bits

#15
I once had a combination of "dueling" VPN clients on a Windows PC that caused random bit flips. It was awful. SSL/TLS sessions randomly failing. SSH sessions closing randomly. Downloaded files failing integrity checks.

It's an interesting juxtaposition of how tolerant TCP/IP is of random bit flips, yet how intolerant application layer protocols are.

Re: AT&T Fiber in the SF Bay Area is flipping bits

#16

It's ironic that for the most part Silicon Valley only has terrible ISP infrastructure. Cellular service isn't all that great either.

The ISPs have tried, but they get pushback from local residents whenever they try to install the necessary network boxes at intervals down the street. They had to go out of their way to hide cellular towers as streetlamps to get the 5G rollout to happen; I remember getting two or three notices for this (each from different telcos, so the one street corner has three streetlamps and two traffic lights on one corner).

I suspect if the droughts didn't make people get rid of their green grassy lawns homeowners would be more amenable to seeing green network boxes every few houses. It looks awful in the context of concrete sidewalks, though.

Re: AT&T Fiber in the SF Bay Area is flipping bits

#17
post #16

It's ironic that for the most part Silicon Valley only has terrible ISP infrastructure. Cellular service isn't all that great either.

The ISPs have tried, but they get pushback from local residents whenever they try to install the necessary network boxes at intervals down the street. They had to go out of their way to hide cellular towers as streetlamps to get the 5G rollout to happen; I remember getting two or three notices for this (each from different telcos, so the one street corner has three streetlamps and two traffic lights on one corner). I…

Solution: Paint the boxes grey.

Re: AT&T Fiber in the SF Bay Area is flipping bits

#19
post #3

I'm so happy to have had the opportunity to switch to Sonic's Fiber last month.

That may not make any difference, depending on your locality. Unfortunately AT&T infrastructure is still relied on by others such as Sonic, which leases lines from the likes of AT&T fiber, at least in my locality.

Sonic's fiber service uses AT&T fiber in Alameda as well. Just another data point. I have that service. It's been working just fine, though. I haven't noticed any symptoms of flipped bits or anything similar to what others are reporting here.

Re: AT&T Fiber in the SF Bay Area is flipping bits

#20
post #16

Earlier quoted context omitted.

The ISPs have tried, but they get pushback from local residents whenever they try to install the necessary network boxes at intervals down the street. They had to go out of their way to hide cellular towers as streetlamps to get the 5G rollout to happen; I remember getting two or three notices for this (each from different telcos, so the one street corner has three streetlamps and two traffic lights on one corner). I…

Solution: Paint the boxes grey.

Solution 2: Lift the box up, attach it to the head of the street lamp.
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