Question Desperately seeking help with intermittent packet loss ( SpeedGuide.net Broadband Community General Broadband Forum )
Updated: 2008-11-23 05:25:02 (12) |
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Desperately seeking help with intermittent packet loss
I have been a reader of these forums for a while and know that there are a lot of great people here that might help me.
For the longest time, I have been experiencing intermittent packet loss. Now, about half of the time, my connection is fine, no packet loss. Then it seems to turn into Mr. Hyde and I get way lower than advertised speeds and massive packet loss. I have jumped through the hoops for tech support multiple times and they said they are going to replace my modem, which is more than 4 years old. So far, they are taking their sweet time.
I have done a lot of troubleshooting on my own, but to no avail. I'm almost 100 percent sure that this isn't a hardware related problem, unless it is in fact the modem. I greatly appreciate any help that you kind folks offer. Thanks.
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| Answers: Desperately seeking help with intermittent packet loss ( SpeedGuide.net Broadband Community General Broadband Forum ) |
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Desperately seeking help with intermittent packet loss
I just did a ping -t to my router as someone in another thread suggested and did not get any timeouts. I notice that sometimes my TV quality suffers, so is it probably a line issue? The modem seems to have helped, but not completely eliminate the problem. Perhaps I had a combination of problems which made for one big one.
I ordered some new cables and will have to wait for them to arrive. The only place close that has any is Radio Shack and I have heard bad things about their stuff...
Hopefully, my office will finally send a tech out and acknowledge that I actually have problems.
cocobinga
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Desperately seeking help with intermittent packet loss
It is a wireless router, although I use a wired connection to it for my desktop. Strangely enough, this is the first trace I've seen where it times out on the first hop. It usually starts on its' way to the headend. I will try replacing the ethernet cable, though. I appreciate all the help!
cocobinga
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Desperately seeking help with intermittent packet loss
On a side note, the Pingplotter screenshot I showed was my PC directly to the modem. Not sure if that matters much, but I'm sure you guys noticed it anyway.
cocobinga
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Desperately seeking help with intermittent packet loss
Quote:
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Originally Posted by cocobinga
Here we go! This one is particularly nasty.
Tracing route to www-real.wa1.b.yahoo.com [69.147.76.15]
over a maximum of 30 hops:
1 <1 ms * <1 ms 192.168.1.1
2 11 ms 10 ms 11 ms 10.201.40.1
3 15 ms 14 ms 13 ms imc-sw1.mis.net [204.68.228.242]
4 20 ms 16 ms 19 ms LEX-RT2.mis.net [204.68.228.247]
5 * 46 ms * sl-gw20-roa-15-1.sprintlink.net [144.232.200.65]
6 * 21 ms 29 ms sl-bb22-roa-2-0.sprintlink.net [144.232.17.185]
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Packet loss starts at the router in hop 1. Is it a wired or wireless router? If wired, I would try using a new cable between the comp and the router. If wireless, look out for possible interference over the air. Possible sources are cordless phone using 2.4 GHz band and energy saving lamps.
trogers
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Desperately seeking help with intermittent packet loss
Here we go! This one is particularly nasty.
Tracing route to www-real.wa1.b.yahoo.com [69.147.76.15]
over a maximum of 30 hops:
1 <1 ms * <1 ms 192.168.1.1
2 11 ms 10 ms 11 ms 10.201.40.1
3 15 ms 14 ms 13 ms imc-sw1.mis.net [204.68.228.242]
4 20 ms 16 ms 19 ms LEX-RT2.mis.net [204.68.228.247]
5 * 46 ms * sl-gw20-roa-15-1.sprintlink.net [144.232.200.65]
6 * 21 ms 29 ms sl-bb22-roa-2-0.sprintlink.net [144.232.17.185]
7 30 ms 26 ms 25 ms sl-bb20-roa-0-0.sprintlink.net [144.232.17.197]
8 25 ms 29 ms 32 ms sl-crs1-chi-0-13-3-0.sprintlink.net [144.232.18.
36]
9 * 59 ms * sl-st20-chi-13-0-0.sprintlink.net [144.232.20.3]
10 27 ms 24 ms 35 ms 144.232.19.174
11 38 ms 56 ms 34 ms ae-32-52.ebr2.Chicago1.Level3.net [4.68.101.62]
12 36 ms 45 ms 35 ms ae-5.ebr2.Chicago2.Level3.net [4.69.140.194]
13 * * * Request timed out.
14 * 51 ms 51 ms ae-82-82.csw3.Washington1.Level3.net [4.69.134.1
54]
15 * * * Request timed out.
16 * 71 ms 78 ms 4.79.228.2
17 75 ms 89 ms 77 ms ae2-p150.msr2.re1.yahoo.com [216.115.108.61]
18 78 ms 79 ms 76 ms te-8-1.bas-a2.re1.yahoo.com [66.196.112.201]
19 * 71 ms 69 ms f1.www.vip.re1.yahoo.com [69.147.76.15]
Trace complete.
cocobinga
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Desperately seeking help with intermittent packet loss
Thanks to everyone so far. I am trying a new modem I picked up from the office and I am still experiencing packet loss, although nothing drastic. I am going to keep monitoring through Pingplotter as I don't quite think my problems are over yet. My SNR is close to 30, is that borderline bad?
cocobinga
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Desperately seeking help with intermittent packet loss
Ok, literally minutes after I posted, I am seeing the same extreme packet loss. Well, it's not the modem, good to know.
cocobinga
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Desperately seeking help with intermittent packet loss
Ping Plotter is good for locating problem along the signal route but a tracert is better for checking out problem at your end.
Do a tracert to www.yahoo.com and post.
trogers
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Desperately seeking help with intermittent packet loss
Quote:
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Originally Posted by cocobinga
Thanks for your reply. It does seem to occur more often during peak times, and I used to think there were too many people in my area sharing bandwidth, but it happens at pretty random intervals. In fact, it was happening around 1:00 AM this morning.
Here is a shot of pingplotter during such a time. It was pretty much like that randomly throughout the day on a daily basis.
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Check and see if the problem is an old overheated modem. Packet losses can kick in when the modem overheats.
trogers
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Desperately seeking help with intermittent packet loss
Thanks for your reply. It does seem to occur more often during peak times, and I used to think there were too many people in my area sharing bandwidth, but it happens at pretty random intervals. In fact, it was happening around 1:00 AM this morning.
Here is a shot of pingplotter during such a time. It was pretty much like that randomly throughout the day on a daily basis.
cocobinga
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Desperately seeking help with intermittent packet loss
If you rent your modem from the ISP you should be able to go to their local office and exchange the modem for another.
Do these slowdowns/packet loss periods occur at similar times?
YARDofSTUF
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Desperately seeking help with intermittent packet loss
cocobinga
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