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Extremely high latency issues on DSL connection

Last response: in Networking
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December 10, 2010 9:29:18 AM

Hello all,

Hopefully someone can point me in the right direction here, as I'm not well versed in networking issues.
I am working off a new internet connection, and was considering some gaming when I noticed extremely high pings in the 400ms to 800ms range. The setup is DSL, approx 1.5 Mbit, through sbcglobal/ATT. The router in use is a standard cheap 2wire gateway. My primary computer has a USB wi-fi adapter, and some other computers use the connection with direct lines to the router. I ran a tracert on my main machine and got the following results, followed by similar results on the other computers.

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.


Tracing route to google.com [74.125.19.147]
over a maximum of 30 hops:

1 2 ms 2 ms 1 ms home [192.168.1.254]
2 222 ms 673 ms 159 ms bras4-l0.pltnca.sbcglobal.net [151.164.184.80]
3 169 ms 54 ms 58 ms 64.164.107.1
4 229 ms 59 ms 790 ms bb1-10g2-0.pltnca.sbcglobal.net [151.164.42.100]

5 642 ms 710 ms 354 ms 151.164.101.130
6 61 ms 56 ms 250 ms 72.14.197.105
7 352 ms 58 ms 60 ms 216.239.49.250
8 399 ms 68 ms 70 ms 209.85.251.94
9 150 ms 62 ms 58 ms nuq04s01-in-f147.1e100.net [74.125.19.147]

Trace complete.


This was done with no other network activity occuring to my knowledge. I also tried the tracert after disabling the firewall (not sure if this could affect it), and it didn't seem to change anything. If anyone could enlighten me as to implications of this result I would appreciate it. Also, if there are any other approaches I should attempt please advise.


December 10, 2010 3:13:08 PM

Well your computer is not to blame because your latency going out to the router is very low. I think your ISP or your router would be the next step here. Unplug the router and give it about five minutes to cool off. Try it again and run another tracert to see what comes up. :D 
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December 10, 2010 6:54:47 PM

Hmm, quite odd results now.
I ran the tracert again without any changes at all except the passage of time, and the massive spikes I was seeing seem to have disappeared.

Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.


Tracing route to google.com [74.125.19.103]
over a maximum of 30 hops:

1 4 ms 1 ms 1 ms home [192.168.1.254]
2 58 ms 60 ms 58 ms bras4-l0.pltnca.sbcglobal.net [151.164.184.80]
3 59 ms 56 ms 58 ms 64.164.107.1
4 57 ms 58 ms 56 ms bb1-10g2-0.pltnca.sbcglobal.net [151.164.42.100]

5 60 ms 59 ms 60 ms 151.164.101.130
6 61 ms 56 ms 60 ms 72.14.197.105
7 62 ms 62 ms 60 ms 216.239.49.250
8 76 ms 72 ms 71 ms 209.85.249.30
9 63 ms 64 ms 61 ms nuq04s01-in-f103.1e100.net [74.125.19.103]

Trace complete.

The latency is still somewhat high, but that's likely due to the low bandwidth, and it seems to be consistent at the moment. I guess most likely something odd was going on at the ISP end? anyway, I will see if the strange behavior returns within the day, but hopefully it was just an aberration.
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