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New Contributor
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Help with Dropped Packets
For the last several weeks we have had problems with intermittant slowness on our home network. Online gaming has a lot of problems with lags and browsing will hang for 10 seconds or so. This started after a rainstorm. Since then I have pulled the power to reset multiple times, had 2 automated resets done all with no improvement Today we had a tech come on site and he redid the tap from the alleyway, replaced all of the lines, tested a new cable modem off the truck but I am still dropping packets (about 5%)
Tecknowhelp
Valued Contributor II
•
What cable modem and router do you have?
Have you tried connecting direct to the modem and testing for packet loss?
Last, can you try a tracert to where ever you were pinging? That will show where the packet loss is occuring.
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phxbarcelona
New Contributor
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1) Netgear C6300BD
2) Testing is with a Windows 7 PC directly attached to the modem
3) Problem persists after replacing modem.
4) 5 tracert tests. Two came back normal; On one tracert, 70.169.74.52 has a 7MS ping time. Next hop, 68.1.1.121 went up to 3027 MS on one of the packets;
Another tracert showed the delay returning from 70.169.74.52 however. 3rd one showed 1/3 packets dropped from 70.168.74.52
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Tecknowhelp
Valued Contributor II
•
Could you post one of the tracert? Context means a lot when looking at them. To copy/paste from CMD, right click on window > Select All > Enter key then paste into reply. Edit as you see fit.
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phxbarcelona
New Contributor
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Sure--includes ping testing followed by tracert testing:
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=25ms TTL=56
Reply from 74.125.224.101: bytes=32 time=22ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=27ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=1055ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=24ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=24ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=29ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=24ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=27ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Request timed out.
Request timed out.
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=27ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=29ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=25ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
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Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=22ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=17ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=24ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=25ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=22ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=22ms TTL=56
Reply from 74.125.224.101: bytes=32 time=27ms TTL=56
Request timed out.
Reply from 74.125.224.101: bytes=32 time=1653ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
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Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
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Reply from 74.125.224.101: bytes=32 time=24ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=25ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=1434ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=15ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
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Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=22ms TTL=56
Reply from 74.125.224.101: bytes=32 time=25ms TTL=56
Reply from 74.125.224.101: bytes=32 time=22ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=27ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Reply from 74.125.224.101: bytes=32 time=21ms TTL=56
Request timed out.
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=2129ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=22ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=32ms TTL=56
Reply from 74.125.224.101: bytes=32 time=23ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=26ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=19ms TTL=56
Reply from 74.125.224.101: bytes=32 time=20ms TTL=56
Reply from 74.125.224.101: bytes=32 time=18ms TTL=56
Ping statistics for 74.125.224.101:
Packets: Sent = 572, Received = 561, Lost = 11 (1% loss),
Approximate round trip times in milli-seconds:
Minimum = 15ms, Maximum = 2984ms, Average = 62ms
Control-C
^C
C:\Users tracert cox.net
Tracing route to cox.net [68.99.123.161]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.0.1
2 7 ms 7 ms 9 ms 10.54.232.1
3 8 ms 8 ms 7 ms 100.127.68.200
4 8 ms 8 ms 7 ms 70.169.74.52
5 3027 ms 57 ms 53 ms dukedsrj01-ae4.0.rd.at.cox.net [68.1.1.121]
6 51 ms 53 ms 54 ms 68.1.15.234
7 53 ms 53 ms 53 ms 68.99.123.4
8 54 ms 53 ms 54 ms ww2.cox.com [68.99.123.161]
Trace complete.
C:\Users\>tracert cox.net
Tracing route to cox.net [68.99.123.161]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.0.1
2 6 ms 7 ms 7 ms 10.54.232.1
3 11 ms 7 ms 7 ms 100.127.68.200
4 10 ms 9 ms 8 ms 70.169.74.52
5 51 ms 52 ms 52 ms dukedsrj01-ae4.0.rd.at.cox.net [68.1.1.121]
6 56 ms 52 ms 53 ms 68.1.15.234
7 52 ms 54 ms 53 ms 68.99.123.4
8 53 ms 53 ms 53 ms ww2.cox.com [68.99.123.161]
Trace complete.
C:\Users>tracert cox.net
Tracing route to cox.net [68.99.123.161]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.0.1
2 9 ms 7 ms 7 ms 10.54.232.1
3 7 ms 7 ms 10 ms 100.127.68.200
4 3300 ms 10 ms 8 ms 70.169.74.52
5 56 ms 52 ms 54 ms dukedsrj01-ae4.0.rd.at.cox.net [68.1.1.121]
6 51 ms 53 ms 52 ms 68.1.15.234
7 52 ms 53 ms 53 ms 68.99.123.4
8 53 ms 53 ms 52 ms ww2.cox.com [68.99.123.161]
Trace complete.
C:\Users\>tracert cox.net
Tracing route to cox.net [68.99.123.161]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.0.1
2 7 ms 7 ms 10 ms 10.54.232.1
3 7 ms 9 ms 7 ms 100.127.68.200
4 8 ms 10 ms 13 ms 70.169.74.52
5 54 ms 53 ms 55 ms dukedsrj01-ae4.0.rd.at.cox.net [68.1.1.121]
6 58 ms 62 ms 53 ms 68.1.15.234
7 52 ms 53 ms * 68.99.123.4
8 57 ms 55 ms 53 ms ww2.cox.com [68.99.123.161]
Trace complete.
C:\User>tracert cox.net
Tracing route to cox.net [68.99.123.161]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.0.1
2 7 ms 8 ms 14 ms 10.54.232.1
3 8 ms 8 ms 7 ms 100.127.68.200
4 * 12 ms 15 ms 70.169.74.52
5 52 ms 56 ms 51 ms dukedsrj01-ae4.0.rd.at.cox.net [68.1.1.121]
6 52 ms 51 ms 53 ms 68.1.15.234
7 56 ms 55 ms 58 ms 68.99.123.4
8 62 ms 59 ms 52 ms ww2.cox.com [68.99.123.161]
Trace complete.
C:\Users>tracert cox.net
Tracing route to cox.net [68.99.123.161]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 192.168.0.1
2 7 ms 7 ms 7 ms 10.54.232.1
3 7 ms 7 ms 7 ms 100.127.68.200
4 9 ms 10 ms 7 ms 70.169.74.52
5 53 ms 53 ms 53 ms dukedsrj01-ae4.0.rd.at.cox.net [68.1.1.121]
6 71 ms 58 ms 59 ms 68.1.15.234
7 52 ms 53 ms 53 ms 68.99.123.4
8 55 ms 52 ms 53 ms ww2.cox.com [68.99.123.161]
Trace complete.
C:\Users
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Tecknowhelp
Valued Contributor II
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The tracert data is somewhat fooling. Notice how the latency reduces to normal by the next hop? That means the hop is passing the data fine, it's just taking a long time to send them back (AKA ICMP deprioritization). This shouldn't be service effecting. ::edit:: Actually looking it over some more, I see one packet failing at hop 3. So your probably seeing a false negative caused by congestion. The false negative isn't effecting anything, but the congestion probably is.
The ping shows something else though. Packets are failing somewhat regularly. Can you post a tracert to 74.125.224.101? I assume that is Google?
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Tecknowhelp
Valued Contributor II
•
Was doing some digging, and I found... something. 100.64.x.x IP are used by ISP when setting up carrier grade NAT. Since when does Cox use THAT?!? What ever it is, I think that is where your problem is.
Could a moderator comment on this? Is Cox using some kind of ISP level NAT now?
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phxbarcelona
New Contributor
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I think there is something on the internal network going on. I started continuous pings to all of the IPs in the tracert and noticed that even 192.168.0.1 was dropping packets at the same time. That made me think this was a local issue. The cable modem had been replaced so it could not be that. So I pulled all of the Ethernet connections to the modem but left WiFi running. Now i am not dropping packets. That means something on the wired side is causing this. Not Cox's issue then, its gotta be my network.
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Tecknowhelp
Valued Contributor II
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Odd that didn't show up in the pings above. Maybe intermittent? Try keeping ping going by Ping -t 192.168.0.1 and then slowly start reconnecting your ethernet, checking the ping each time. When you connect something, and the latency starts occurring, you have your culprit. I would wait a couple minutes between each new connection to give it some to connect and cause the problem.
PS. You may have found the cause of your issue, but I am still curious why your going through a 100.x.x.x IP. Wonder if it has anything to do with IPv6. It is 3-4 hops out though, so it isn't anything local.
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DustinP
Moderator
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Please report your findings here. We can also take a look at the equipment if there are any ongoing troubles. Thank you.
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AzDave2015
New Contributor
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agreed same here and it seems to coincide with the overproduction of carrier level NAT
Tracing route to www.azstarnet.com [192.104.182.109]
over a maximum of 30 hops:
1 43 ms 1 ms 2 ms 192.168.1.1
2 15 ms 14 ms 13 ms 10.34.32.1
3 14 ms 11 ms 12 ms 100.127.71.182
4 25 ms 15 ms 16 ms 72.215.229.20
5 27 ms 19 ms 13 ms ae57.bar2.Phoenix1.Level3.net [4.28.82.53]
6 * * * Request timed out.
7 70 ms 80 ms 72 ms LEE-ENTERPR.ear1.Chicago2.Level3.net [4.28.68.2]
this new 100.xxx branch is
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Tecknowhelp
Valued Contributor II
•
Seems to be a local routing issue. I don't seem to go through the same IP. I assume you are in AZ or somewhere West Coast? Is it possible Cox is just using the 100.64.0.0/10 for their private IP block?
Tracing route to LEE-ENTERPR.ear1.Chicago2.Level3.net [4.28.68.2]
over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms router.asus.com [192.168.1.1]
2 8 ms 7 ms 8 ms 10.2.48.1
3 8 ms 9 ms 8 ms 172.23.178.50
4 9 ms 9 ms 9 ms ip98-190-33-123.ri.ri.cox.net [98.190.33.123]
5 14 ms 13 ms 14 ms nyrkbprj01-ae3.0.rd.ny.cox.net [68.1.5.157]
6 1464 ms 2011 ms 1224 ms lag-22.ear2.NewYork1.Level3.net [4.35.90.1]
7 * * * Request timed out.
8 35 ms 36 ms 35 ms LEE-ENTERPR.ear1.Chicago2.Level3.net [4.28.68.2]
Also, it seems like there is congestion between Cox and Level3. Could that have something to do with the problem with Level3 in general?
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