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10-50% Packet loss! :(
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Old 09-10-2005, 14:20   #1
alex-weej
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10-50% Packet loss! :(
Phoned NTL cable modem tech support for the first time in about 2 years expecting to speak to a friendly and knowledgable welsh bloke. It seems there's no more of that. The guy says I need to get the account holder to ring up and arrange an engineer. :@

My connection is absolutely battered as of yesterday and it is totally wrecking my throughput. I'm on the 2 Mb service with an Ambit 100 and now lucky to see more than 30 K off anything.

Anyway, the guy on the phone just said call an engineer out but didn't even seem to make any reasonable effort like the old tech support people did, so I had a little investigation myself and managed to find the log page. (Why have they hidden it!? - http://192.168.100.1/P_log.htm for anyone wondering, what a guess!)

Code:
Event Log
Index 	First Time 	Last Time 	Counts 	Level ID 	Text
1 	2000-08-17 22:52:02 	2005-10-09 14:19:48 	131 	error 	26 	R02.0 No Ranging Response received...
9 	2005-09-02 21:16:39 	2005-10-09 14:10:24 	127 	information 	114 	SNMP Authentification Fail
8 	2005-09-02 20:29:04 	2005-10-09 13:45:04 	3 	information 	113 	Link Up
13 	2005-10-09 13:45:03 	2005-10-09 13:45:03 	1 	information 	112 	Link Down
3 	2005-08-29 06:59:38 	2005-10-09 13:41:15 	6 	notice 	95 	E101.0 TFTP cmreg-ntlhm100-mid.cm...
4 	2005-08-29 06:59:38 	2005-10-09 13:41:15 	6 	notice 	94 	TFTP success (3680 bytes)
6 	2005-09-02 20:28:32 	2005-10-09 13:41:15 	3 	information 	110 	Cold Start
7 	2005-09-02 20:28:32 	2005-10-09 13:41:15 	3 	notice 	126 	Registration OK
2 	2000-08-17 22:52:03 	2005-10-08 18:16:56 	6 	notice 	125 	SNMP Event: SNMP agent Start.
12 	2005-09-08 02:21:47 	2005-09-08 02:21:47 	1 	information 	80 	D04.1 Time of Day Request...
5 	2005-08-29 06:59:38 	2005-09-08 02:21:26 	3 	information 	111 	Warm Start
11 	2005-09-08 02:12:35 	2005-09-08 02:20:36 	2 	notice 	123 	Reset
10 	2005-09-08 02:12:23 	2005-09-08 02:20:23 	3 	information 	2 	T02.0 Failed to acquire FEC...
Notice the errors at the top. A new one is added every 10 seconds pretty much. Any ideas?

Code:
Downstream SNR : 21.02 dB
Upstream Transmit Power Level : 61.00 dBmv
Cheers
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Old 09-10-2005, 15:37   #2
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Re: 10-50% Packet loss! :(
Those values seem a bit off to me, someone a bit more knowledgable will be along soon im sure.
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Old 09-10-2005, 21:11   #3
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Re: 10-50% Packet loss! :(
Quote:
Originally Posted by alex-weej
<snip>
From the look of that there was no need for Tech Support to do any other diagnostics. Connection is fubared, so yep an engineer is needed. I guess the person you spoke to could have gone through loads of other irrelvant diagnostics with you, but the results that he would have seen from the tests on the modem show quite clearly that an engineer is needed!

Don't understand this forum.... people moan that tech support spend too much time investigating pc issues and not sending engineers, and people moan that it's decided an engineer is needed to quickly

/mutters crazy things to himself and then goes back to sit in his corner.
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Old 09-10-2005, 22:10   #4
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Re: 10-50% Packet loss! :(
thanks for the url nice to see a log, mine has the snmp error also I would ignore that, it might be something to do with the new firmware blocking snmp now.

I got this error with 35 counts, first occurance 17 aug 2000 (i wasnt on ntl then O_O) and last occurance 9 oct 2005

R02.0 No Ranging Response received, T3 time-out
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Old 09-10-2005, 22:15   #5
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Re: 10-50% Packet loss! :(
Downstream SNR sucks the botty, upstream transmit is maxing out. Those of you who've been here a while shame on you, I did a thread on acceptable power levels and this chap is well outside them!

This link is heavily attenuated, at a guess no noise just attenuation making the wanted signals too weak, needs an engineer to come and check it out.

Tech support were spot on. Can't complain about this, they could have made you go through a load of scripted PC checks but didn't
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Old 10-10-2005, 16:14   #6
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Re: 10-50% Packet loss! :(
Ignition I dont upload much, but dont know if you was reffering to my error or not. I also have upload capped via netlimiter so if I have to upload anything my capacity isnt maxed so my ssh sessions dont lag.
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Old 10-10-2005, 19:13   #7
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Re: 10-50% Packet loss! :(
Quote:
Originally Posted by Chrysalis
Ignition I dont upload much, but dont know if you was reffering to my error or not. I also have upload capped via netlimiter so if I have to upload anything my capacity isnt maxed so my ssh sessions dont lag.
By upstream transmit I was referring to OP's 61dBmV transmit power on his modem.
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Old 13-10-2005, 21:17   #8
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Re: 10-50% Packet loss! :(
Quote:
Originally Posted by alex-weej
Phoned NTL cable modem tech support for the first time in about 2 years expecting to speak to a friendly and knowledgable welsh bloke. It seems there's no more of that. The guy says I need to get the account holder to ring up and arrange an engineer. :@

My connection is absolutely battered as of yesterday and it is totally wrecking my throughput. I'm on the 2 Mb service with an Ambit 100 and now lucky to see more than 30 K off anything.

Anyway, the guy on the phone just said call an engineer out but didn't even seem to make any reasonable effort like the old tech support people did, so I had a little investigation myself and managed to find the log page. (Why have they hidden it!? - http://192.168.100.1/P_log.htm for anyone wondering, what a guess!)

Code:
Event Log
Index 	First Time 	Last Time 	Counts 	Level ID 	Text
1 	2000-08-17 22:52:02 	2005-10-09 14:19:48 	131 	error 	26 	R02.0 No Ranging Response received...
9 	2005-09-02 21:16:39 	2005-10-09 14:10:24 	127 	information 	114 	SNMP Authentification Fail
8 	2005-09-02 20:29:04 	2005-10-09 13:45:04 	3 	information 	113 	Link Up
13 	2005-10-09 13:45:03 	2005-10-09 13:45:03 	1 	information 	112 	Link Down
3 	2005-08-29 06:59:38 	2005-10-09 13:41:15 	6 	notice 	95 	E101.0 TFTP cmreg-ntlhm100-mid.cm...
4 	2005-08-29 06:59:38 	2005-10-09 13:41:15 	6 	notice 	94 	TFTP success (3680 bytes)
6 	2005-09-02 20:28:32 	2005-10-09 13:41:15 	3 	information 	110 	Cold Start
7 	2005-09-02 20:28:32 	2005-10-09 13:41:15 	3 	notice 	126 	Registration OK
2 	2000-08-17 22:52:03 	2005-10-08 18:16:56 	6 	notice 	125 	SNMP Event: SNMP agent Start.
12 	2005-09-08 02:21:47 	2005-09-08 02:21:47 	1 	information 	80 	D04.1 Time of Day Request...
5 	2005-08-29 06:59:38 	2005-09-08 02:21:26 	3 	information 	111 	Warm Start
11 	2005-09-08 02:12:35 	2005-09-08 02:20:36 	2 	notice 	123 	Reset
10 	2005-09-08 02:12:23 	2005-09-08 02:20:23 	3 	information 	2 	T02.0 Failed to acquire FEC...
Notice the errors at the top. A new one is added every 10 seconds pretty much. Any ideas?

Code:
Downstream SNR : 21.02 dB
Upstream Transmit Power Level : 61.00 dBmv
Cheers
http://192.168.100.1/P_log.htm

dont work for meh ? :> or is only if ya on cable modem and not a stb ?
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Old 13-10-2005, 21:23   #9
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Re: 10-50% Packet loss! :(
yup... only works on cable modem i'm afraid!
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