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[NEWS] Cox Raising Broadband Prices In Several States »
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Joonp

join:2008-06-02


1 edit
[VA] Losing connection without desync

Previously, I had problem with periodic burst of packet loss but it disappeared after a week of new modem. However now I have a new problem with complete connection loss at least once or twice a day without going out of sync and it doesn't seem to recover itself unless I restart the modem. Please help.

Model Name: DCM-202

Downstream Signal
Frequency: 393000000 Hz
QAM Mode: 256 QAM
Channel Power: 1.6 dBmV
SNR: 33.967 dB

Upstream Signal
Channel Id: 1
Frequency: 28496000 Hz
Channel Width: 3200000 Hz
Channel Power: 41.3 dBmV

System Event Log

1 06/30/08 14:55:27 R02.0 critical No Ranging Response received - T3 time-out
2 06/30/08 03:47:40 D04.1 warning ToD request sent - No Response received
3 06/30/08 03:47:43 I401.0 notice TLV-11 - unrecognized OID


dvd536
as Mr. Pink as they come
Premium
join:2001-04-27
Phoenix, AZ
signals look good although that SNR is lower than cox likes to see it at.
do you have a router?
--
When I gez aju zavateh na nalechoo more new yonooz tonigh molinigh - Ken Lee

daveinpoway
Premium
join:2006-07-03
Poway, CA

Based on my experience, my DLink DCM-202 reports a downstream S/N ratio that is a dB or so lower than my Motorola SB5120, so the posted number (almost 34) would probably be 35-36 with a Motorola. Here, after a recent tech visit that resulted in several things being swapped out and my connection being given a clean bill of health, it is impossible for my DCM-202 to report 35 dB or higher.

From what I know, the S/N ratio is not directly measured by the modem, but it is calculated from the bit error rate. It seems reasonable that different modems might perform this calculation a little differently.

Joonp

join:2008-06-02
reply to dvd536
no router

jfoj

join:2005-05-06
Mclean, VA
Where are you located?

jfoj

Joonp

join:2008-06-02
NOVA


jsimmons
Premium,MVM
join:2000-04-24
Falls Church, VA

reply to Joonp
FYI, the error log messages are fairly normal. You don't want to see tons of T3 errors in a short period, but a few a day are nothing to be concerned about. The other two generally occur when the modem resets or is rebooted, and while it would be nice not to see them in the log, they don't seem to cause issues. I see them too in my logs but don't have any connectivity issues.
--
"Everything should be made as simple as possible, but not one bit simpler."- Albert Einstein

Joonp

join:2008-06-02

»[VA] Intermittent Internet Issues???

seems like it's not just me, not sure if they are also experiencing no problem with light signals on the modem itself when you are not connected (it says you are synced but you are not)

I also have periodic burst of packet loss since, uh two months ago? for example:

July 02 9:59 PM
Reply from 64.233.169.147: bytes=32 time=9ms TTL=248
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Request timed out.
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Reply from 64.233.169.147: bytes=32 time=9ms TTL=248
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Reply from 64.233.169.147: bytes=32 time=7ms TTL=248
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Request timed out.
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this has happen at least 5 times today already...

this is getting old, techs who came couldn't figure out


CoxTOC1

join:2007-05-15
Newport News, VA
If you could send me you modem MAC I would like to take a look at it.

Joonp

join:2008-06-02

sent you a PM

meanwhile...

July 02 5:27 PM
Reply from 64.233.169.147: bytes=32 time=8ms TTL=248
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Request timed out.
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Request timed out.
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July 02 8:58 PM
Reply from 64.233.169.147: bytes=32 time=13ms TTL=248
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July 02 9:59 PM
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July 03 10:22 AM
Reply from 64.233.169.147: bytes=32 time=8ms TTL=248
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Request timed out.
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July 03 11:04 AM
Reply from 64.233.169.147: bytes=32 time=8ms TTL=248
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Request timed out.
Reply from 64.233.169.147: bytes=32 time=9ms TTL=248
Reply from 64.233.169.147: bytes=32 time=6ms TTL=248
Reply from 64.233.169.147: bytes=32 time=7ms TTL=248
Reply from 64.233.169.147: bytes=32 time=6ms TTL=248
Reply from 64.233.169.147: bytes=32 time=8ms TTL=248
Reply from 64.233.169.147: bytes=32 time=8ms TTL=248
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
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Request timed out.
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Request timed out.


jsimmons
Premium,MVM
join:2000-04-24
Falls Church, VA

Do yourself a favor and get a copy of this (it free): »www.pingplotter.com/freeware.html

It'll make your life easier in tracking down connectivity issues.
--
"Everything should be made as simple as possible, but not one bit simpler."- Albert Einstein

Joonp

join:2008-06-02

thanks, been tracing since last night

15 global packet losses from tracing is due to same issue as »[VA] Intermittent Internet Issues??? as I could not get back online until I reset the modem.

Joonp

join:2008-06-02

oh come on, i'm out of option on what to do, it's been great til 2 months ago

July 07 5:00 AM
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=14ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=11ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=11ms TTL=248
Reply from 64.233.169.103: bytes=32 time=14ms TTL=248
Reply from 64.233.169.103: bytes=32 time=14ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=12ms TTL=248
Reply from 64.233.169.103: bytes=32 time=21ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=13ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=9ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248

July 07 7:22 AM
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=10ms TTL=248
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=10ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=15ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=6ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248

July 07 8:30 AM
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=6ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=16ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=9ms TTL=248
Reply from 64.233.169.103: bytes=32 time=14ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=29ms TTL=248
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=11ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=6ms TTL=248
Request timed out.
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=6ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248

this is quite unbearable

Joonp

join:2008-06-02


1 edit
July 07 8:54 AM
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=6ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=9ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=13ms TTL=248
Request timed out.
Request timed out.
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Reply from 64.233.169.103: bytes=32 time=13ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=14ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248

4 07/03/08 10:04:27 R02.0 critical No Ranging Response received - T3 time-out
5 07/03/08 10:04:28 R03.0 critical Ranging Requests Retries exhausted
6 07/03/08 10:05:16 R02.0 critical No Ranging Response received - T3 time-out
7 07/03/08 10:05:20 R03.0 critical Ranging Request Retries exhausted
8 07/03/08 10:05:58 R02.0 critical No Ranging Response received - T3 time-out
9 07/03/08 10:05:59 R03.0 critical Ranging Request Retries exhausted
10 07/03/08 10:05:59 U02.0 critical UCD invalid or channel unusable
11 07/03/08 10:06:00 T01.0 critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
12 07/03/08 10:06:09 T04.0 critical SYNC Timing Synchronization failure - Failed to receive MAC SYNC frame within time-out period
13 07/03/08 10:06:10 T01.0 critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
14 07/03/08 10:06:49 R02.0 critical No Ranging Response received - T3 time-out
15 07/03/08 10:06:53 R03.0 critical Ranging Request Retries exhausted
16 07/05/08 02:29:47 R02.0 critical No Ranging Response received - T3 time-out
17 07/05/08 02:29:48 R03.0 critical Ranging Requests Retries exhausted
18 07/05/08 02:30:33 R02.0 critical No Ranging Response received - T3 time-out
19 07/05/08 02:30:38 R03.0 critical Ranging Request Retries exhausted
20 07/07/08 06:21:36 R02.0 critical No Ranging Response received - T3 time-out
21 07/06/08 20:38:21 D04.1 warning ToD request sent - No Response received
22 07/06/08 20:38:24 I401.0 notice TLV-11 - unrecognized OID
23 07/07/08 06:45:17 R02.0 critical No Ranging Response received - T3 time-out

Joonp

join:2008-06-02



^^
July 07 9:18 AM
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=14ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=6ms TTL=248
Reply from 64.233.169.103: bytes=32 time=13ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=14ms TTL=248
Request timed out.
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=13ms TTL=248
Reply from 64.233.169.103: bytes=32 time=14ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248
Reply from 64.233.169.103: bytes=32 time=8ms TTL=248
Reply from 64.233.169.103: bytes=32 time=7ms TTL=248


jsimmons
Premium,MVM
join:2000-04-24
Falls Church, VA

While your round-trip ping time looks very good, it appears that the packet loss is mostly being introduced at your first hop.. Indicating a possible problem with the upstream path. I doub't we'll be able to help you directly, so as long as you have Cox techs looking at it, they should hopefully come up with a fix. keep us posted on your progress.
--
"Everything should be made as simple as possible, but not one bit simpler."- Albert Einstein

Joonp

join:2008-06-02




Time log of PL burst today
July 07 5:00 AM
July 07 7:22 AM
July 07 8:30 AM
July 07 8:54 AM
July 07 9:18 AM
July 07 9:42 AM
July 07 10:05 AM

*** stopped monitoring 'til evening ***

July 07 9:19 PM
July 07 10:02 PM
July 07 11:31 PM
July 07 11:58 PM
July 08 12:58 AM
July 08 1:25 AM
July 08 1:53 AM

on the other hand, I haven't noticed »[VA] Intermittent Internet Issues??? for several days.


jsimmons
Premium,MVM
join:2000-04-24
Falls Church, VA
reply to Joonp
No doubt there is a signal path issue between your modem and the CMTS. So is Cox working on it for you?
--
"Everything should be made as simple as possible, but not one bit simpler."- Albert Einstein

Joonp

join:2008-06-02
yeah, hopefully it works out soon

Joonp

join:2008-06-02



trace during following:

July 10 11:15 PM
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=17ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=9ms TTL=248
Reply from 64.233.169.104: bytes=32 time=12ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=9ms TTL=248
Reply from 64.233.169.104: bytes=32 time=9ms TTL=248
Reply from 64.233.169.104: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=7ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=7ms TTL=248
Reply from 64.233.169.104: bytes=32 time=9ms TTL=248
Reply from 64.233.169.104: bytes=32 time=9ms TTL=248
Reply from 64.233.169.104: bytes=32 time=9ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=9ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=26ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=14ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=7ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=7ms TTL=248
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=21ms TTL=248
Reply from 64.233.169.104: bytes=32 time=18ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=15ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=7ms TTL=248
Request timed out.
Reply from 64.233.169.104: bytes=32 time=8ms TTL=248
Reply from 64.233.169.104: bytes=32 time=9ms TTL=248
Forums » US Cable Support » Cox HSI[NEWS] Cox Raising Broadband Prices In Several States »
« Internet Disconnect  
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