IP re-route help, severe packet loss

I am having an issue with a specific comcast server in my pathway. The IP is 96.110.42.177. My upload and download speed are great but I am having severe packet loss exclusively related to this one server and I have been unable to force my gateway into a new IP for a new path. When I have tried to release and renew through command prompt my pathway remains the same. Chat agents and phone agents do not seem to understand what data packet loss is and have not been able to offer a solution. I have just been asking for an IT ticket to be opened and they do not seem able to do that successfully. There is no issue at my house or with any of the local server connections, only the one server in Chicago with the IP shown above. Any help is welcome, thank you.

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BruceW

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26.7K Messages

2 days ago

I am having an issue with a specific comcast server in my pathway. ...

Please post the complete traceroute (or tracert) for a path that includes this router. From origin to target, include the statistics (IP address, hostname, RTT, packet loss, etc.) for each hop.

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user_zeii7s

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2 Messages

I do not seem to be able to figure out how to upload the image with all of this data but I am losing a pretty consistent 74 percent of packets at 96.110.42.177 and nowhere else. It is a Chicago Comcast server. I can post the entire trace if there is a way to upload images but there doesn't appear to be.

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2 days ago

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XfinityThomasA

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2.7K Messages

Our team is here to help, user_zeii7s. Can you share a screen shot or photo of what is happening as suggest by @BruceW? Thank you!

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4 hours ago

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BruceW

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2 days ago

... I can post the entire trace if there is a way to upload images ...

If your editor window doesn't have an "insert image" icon, you can post text, like so:

C>tracert -4 www.xfinity.com

Tracing route to e10994.dscx.akamaiedge.net [104.72.119.40] over a maximum of 30 hops:

1 3 ms 3 ms 3 ms router1 [192.168.1.1]
2 11 ms 8 ms 9 ms 96.120.9.181
3 10 ms 9 ms 8 ms po-301-1203-rur01.york.pa.pitt.comcast.net [24.124.216.181]
4 11 ms 10 ms 9 ms be-87-rar01.lowerpaxton.pa.pitt.comcast.net [96.110.25.9]
5 19 ms 18 ms 18 ms be-33-ar01.pittsburgh.pa.pitt.comcast.net [69.139.168.185]
6 18 ms 17 ms 18 ms 50.233.178.118
7 18 ms 18 ms 20 ms lo1.r02.stem01.pit01.fab.netarch.akamai.com [23.213.207.25]
8 18 ms 18 ms 18 ms lo1.r02.spine02.pit01.fab.netarch.akamai.com [23.213.207.13]
9 18 ms 17 ms 17 ms lo1.r02.leaf01.pit01.fab.netarch.akamai.com [23.213.207.5]
10 24 ms 17 ms 18 ms lo1.r03.tor01.pit01.fab.netarch.akamai.com [23.213.207.30]
11 18 ms 17 ms 18 ms a104-72-119-40.deploy.static.akamaitechnologies.com [104.72.119.40]

Trace complete.

ETA: The other thing you could so is post the image on a site like http://imgur.com/, and then post a link to it here.

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(edited)

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Zaphod_Joe

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9 Messages

I have been having an issue for the last 2 days with the same thing but in Connecticut where the packets are getting lost around New York and Boston. I've power cycled the router a few times. Not sure what to do now. I will include the Traceroute and MTR showing lost parkettes. Any idea how to fix this? Thanks.

-Joe

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2 days ago

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BruceW

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1 day ago

@Zaphod_Joe: Your traces for this site show no packet loss at the destination. The apparent loss at hops along the way are probably not significant.

Please see https://web.archive.org/web/20230802010554/https://www.dslreports.com/faq/14068:

Why am I seeing so much packet loss in my provider's network?
If you are also seeing packet loss from these points all the way to the final hop of your test, that points to a problem on the device first showing packet loss or on the inbound connection to that device. However, if you are not seeing packet loss all the way to the final hop, this apparent packet loss may not be an issue.

Some providers are rate-limiting how often they respond with the TTL-exceeded ICMP packets used by traceroute and similar tools like the Packet Loss Test. This is done to prevent attacks against these routers, since responding to these packets requires much more CPU time than simply forwarding the packet does. If the router is set up to rate-limit, it will respond to a certain number of traceroute packets per second, and once that many have been received, it will stop responding to them for that second -- which will appear as packet loss. You are not losing any "real" traffic, assuming the final hop of your traceroute isn't showing any loss.

The fact that hops after the "loss" hops are receiving packets indicates that the routers are doing their job: forwarding data packets. The occasional delay in or failure to respond to trace packets, while annoying, is most likely not actually slowing down data transfer. If it was we'd see high RTT values and/or packet loss in the following hops, and we don't. You may indeed have a communication problem, but the traces do not show that.

Interpreting trace results is tricky. What appears to be "late" or is reported as "lost" could mean 1) the packet did not reach or was delayed in reaching that hop, or 2) the router at that hop didn't reply or was slow to reply, or 3) the reply from that hop didn't make it back or was delayed in making it back to the trace program.

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Zaphod_Joe

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9 Messages

I am still having issues on that server at the destination. Other people can use it without problem but I have to keep reloading, sometimes it doesn't load, or I have to refresh multiple times, it started yesterday and continued today. That's the only reason I did the traces. It's not really usable without a lot of frustration.

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1 day ago

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user_zeii7s

IP re-route help, severe packet loss

BruceW

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user_zeii7s

XfinityThomasA

BruceW

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Zaphod_Joe

BruceW

Why am I seeing so much packet loss in my provider's network?

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Zaphod_Joe

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