Packet Loss on Xfinity Network in Atlanta

So, I've had an issue the last week and a half or so with some pretty significant packet loss on the Xfinity network. Hopefully posting here will get an Xfinity tech to take a look into it. I've tried going through regular support, and I just can't seem to get across to them that the issue is NOT on my end.

Here is an example from PingPlotter Pro, doing a trace to 8.8.8.8 (Google's public DNS server):

The issue is on hop #5 mainly, which is named "be-306-ar-in05.b0atlanta.ga.atlanta.comcast.net" with an IP of 68.86.106.177.

Also, as you can see, I am getting a very high ping to that first hop out of my network (so, hop #2) to IP "100.93.71.194", which according to Arin Whois, that is an ISP-only internal IP.

And, I get these same results from any computer on my internal home network. So, it isn't just one PC having an issue.

-J. Andrew "Az" [Edited: "Personal Information"]

Responses

J

jap42

4 Messages

1 year ago

It is getting even worse. Look at hop #2's current (and average) ping, as well as the nearly 50% packet loss on hop #5. :(

0

BruceW

Gold Problem Solver

•

26K Messages

1 year ago

... The issue is on hop #5 mainly, which is named "be-306-ar-in05.b0atlanta.ga.atlanta.comcast.net" ...

The trace continues past the timeouts at the intermediate hops and reaches the destination, so the timeouts are probably not significant. Please see https://www.dslreports.com/faq/14068.

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1

J

jap42

4 Messages

@BruceW - Well, I'm only sending one ping per 5 seconds. So...I doubt that I'm hitting some rate limit. But, I suppose that's possible.

How about those high latency responses on the first hop (well, technically 2nd...hop #1 is my modem/router).

1 year ago

0

BruceW

Gold Problem Solver

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26K Messages

1 year ago

... How about those high latency responses on the first hop ...

I'm having trouble reading the IP address of hop #2, but it appears to something like 100.?93?.?.?. If so, you have the misfortune to have been assigned a Carrier Grade NAT IP, and only Comcast can tell you what is happening with it, because AFAIK they have never explained how they are using it or why it might produce the timings you are seeing.

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(edited)

2

0

J

jap42

4 Messages

@BruceW - that hop #2 IP is: 100.93.71.194

Yeah, I knew it was a carrier IP.

I was hoping one of the Comcast reps would have seen this and responded like I see them doing in other posts. :(

1 year ago

0

XfinityNicolas

Official Employee

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1.1K Messages

Hey @jap42, thank you for reaching out to Xfinity Support on our Forums. A heads up for future posts, the majority of our sections are designed to have a 2 day delay window so the community like @BruceW can give their advice or share their experiences. If you ever need direct help from us sooner, the customer service section will route right to us. I can certainly help with the packet lose if you can send us a direct message.

To send a direct message:

Click "Sign In" if necessary

• Click the "Direct messaging" icon near the top right of the page

• Click the "New message" (pencil and paper) icon

• Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "Xfinity Support" graphic replaces the "To:" line

• Type your message in the text area near the bottom of the window

• Press Enter to send it

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1 year ago

0

Your Home Network

jap42

Packet Loss on Xfinity Network in Atlanta

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jap42

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