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blocknonip's profile

42 Messages

Sunday, January 21st, 2024 1:53 AM

Closed

Horrible evening connectivity and timeouts in the Austin/Dallas areas now on its 11th day!

Spinning off a new thread instead of mixing into that (laughable) gaming latency one.

I went back through my logs, this issue has actually been happening every evening since January 9th! Tonight it started early at 6:15 PM CST, likely due to being a weekend.

As noted previously, this is not just a ping/traceroute issue, this is connectivity failure and timeouts with many sites, including Google, YouTube, and any sites that import Google content (i.e. everyone).

Here's the latest, 565 ms through to 8.8.8.8:

$ traceroute -n -w 1 8.8.8.8
traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 40 byte packets
 1  192.168.1.254  0.417 ms  0.243 ms  0.506 ms
 2  99.a.b.1  1.511 ms  1.429 ms  1.455 ms
 3  71.149.77.250  3.054 ms  2.966 ms  3.055 ms
 4  * * *
 5  32.130.17.87  30.799 ms  46.03 ms  57.468 ms
 6  12.255.10.124  601.749 ms 12.255.10.122  855.111 ms 12.255.10.124  594.659 ms
 7  * * *
 8  8.8.8.8  564.383 ms  562.933 ms  562.999 ms

cc: @sm3388 @MotoX331 @Txchad73 

Additional background:

https://forums.att.com/conversations/att-fiber-equipment/att-routing-issues-to-games/65a87a72e9fca670cc37fcb1

https://old.reddit.com/r/ATTFiber/comments/197qa7u/is_atts_backbone_normally_like_this/

Tutor

 • 

10 Messages

4 months ago

I'm in the Austin area also, and same issue here...  My traceroutes to Google and other popular internet services are showing the same issue everyone else is posting about (very high latency during peak hours).

My router is also showing this, which helps to visualize the issue.

(edited)

42 Messages

4 months ago

Thank you for your effort.

17 Messages

4 months ago

I know they are working on it now, but just keeping day to day status current with recent data.

42 Messages

4 months ago

Got a strange DM from AT&T help indicating "they noticed that the issue stemmed on Google's end and are attempting to work with Google on this." Given that the issue appeared to be within AT&T IPs and encompassed problems with a lot more than just Google services/domains, I'm a little concerned.

Or perhaps they meant additional problems were found. I'll keep my fingers crossed either way.

(edited)

Tutor

 • 

10 Messages

4 months ago

Got a strange DM from AT&T help indicating "they noticed that the issue stemmed on Google's end and are attempting to work with Google on this." Given that the issue appeared within AT&T IPs and encompassed problems with a lot more than just Google services/domains, I'm a little concerned.

Hmm, that is concerning.  The trace route clearly shows that the spikes are entirely within the ATT network, right (i.e. they occur on a hop between one ATT router to another, before reaching outside services like Google)?

Hopefully someone without direct knowledge is just spitballing.

ACE - Expert

 • 

35.5K Messages

4 months ago

Several things are possible here:

1) The problem really is with google servers and how they advertise routes to their servers and how AT&T reacts to that

2) There are more sites hosted in the Google Cloud than I knew 

3) That could have been something that got misunderstood and repeated, sort of like a game of telephone

I lean more towards #3 than anything else until I hear something more substantial.

Tutor

 • 

10 Messages

4 months ago

Appreciate the help, JefferMC.  I'm just looking at my own trace route to google, which I've been capturing directly from my ATT Gateway each night around 8pm.  Here's the capture from last night:

traceroute to google.com (142.250.138.113), 30 hops max, 38 byte packets
<snip first hop>
 2  71.149.90.20 (71.149.90.20)  2.883 ms  2.717 ms  2.687 ms
 3  *  *  *
 4  32.130.17.87 (32.130.17.87)  310.219 ms  421.464 ms  408.815 ms
 5  12.255.10.124 (12.255.10.124)  886.670 ms  900.004 ms  1085.894 ms
 6  108.170.252.161 (108.170.252.161)  1057.000 ms  1089.560 ms  1194.881 ms
 7  108.170.252.163 (108.170.252.163)  894.270 ms  860.396 ms  796.188 ms
 8  *  *  *
 9  *  *  *
10       

       

In this case, there is a spike starting at hop 4 and exacerbated at hop 5.  When I do a WHOIS for these IPs, it looks like both are owned by ATT.  So I was assuming the latency originates within ATT's network before reaching Google's routers.  I'm not an expert, so please correct me if I'm wrong.

ACE - Expert

 • 

35.5K Messages

4 months ago

What I'm suggesting is that it is theoretically possible for Google to provide routing information to AT&T that causes them to route a lot of traffic down the same rabbit hole and causing congestion.  Do I find it likely?  Not really.    I'm really hoping that someone technical at AT&T told someone less technical at AT&T something that had the word "google" in it and it ended up being what you heard.

2 Messages

4 months ago

I'm the Austin area, Round Rock to be specific and I have the same issue as everyone in this thread. Started about 2 weeks ago. unable to watch Youtube videos and my Youtube tv streaming service quality is garbage during prime time hours, below is my trace route as of 5 minutes ago.  

traceroute -n -w 1 8.8.8.8

traceroute to 8.8.8.8 (8.8.8.8), 64 hops max, 52 byte packets

 1  10.0.4.99  0.950 ms  0.347 ms  0.284 ms

 2  23.120.228.1  2.065 ms  1.877 ms  2.021 ms

 3  71.149.90.4  3.606 ms  3.592 ms  3.646 ms

 4  * * *

 5  32.130.17.87  35.468 ms  24.031 ms  27.681 ms

 6  12.255.10.120  695.498 ms

    12.255.10.122  94.404 ms

    12.255.10.120  811.540 ms

 7  * * *

 8  8.8.8.8  762.435 ms  721.472 ms  669.200 ms

psanchez@Hipolitos-Mac-mini ~ % 

42 Messages

4 months ago

Thanks for joining the discussion! Per the "accepted" answer on the first page, AT&T has confirmed the issue and hopes to have it resolved in the next few days. We're all waiting with bated breath...

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