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blumf
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Message 1 of 14
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Connection Keeps Stalling, Modem Shows RS Errors

Been getting an increasingly unreliable connection. Looking at the modem's status I see:

Downstream bonded channels

ChannelLocked StatusRxMER (dB)Pre RS ErrorsPost RS Errors
1Locked40.9599711698
2Locked40.972415597
3Locked40.376847554
4Locked40.9762114829
5Locked40.3774613349
6Locked40.377868805
7Locked40.981418476
8Locked40.378146531
9Locked40.3772612347
10Locked40.3727714544
11Locked40.3689214848
12Locked40.971477649
13Locked40.369919490
14Locked40.3648910130
15Locked40.3625212034
16Locked40.9619512981
17Locked40.362099651
18Locked40.3612215792
19Locked40.3568410370
20Locked40.3555912892
21Locked40.3590611470
22Locked40.9518412778
23Locked40.3545810560
24Locked40.3582511212

 

Upstream bonded channels

ChannelChannel TypeT1 TimeoutsT2 TimeoutsT3 TimeoutsT4 Timeouts
1ATDMA00120
2ATDMA00220
3ATDMA00120
4ATDMA0060
5ATDMA00150

 

That can't be right, cabling issue?

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Tudor
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Message 2 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

We need the full stats and the log, but also check for local issues.

Check with Area faults on 0800 561 0061 If you have a VM landline 150 this goes down to post code level. You could also try the web page status, but this is not recommended as it only covers issues that affect a very large number of customers.


Tudor
There are 10 types of people: those who understand binary and those who don't and F people out of 10 who do not understand hexadecimal c1a2a285948293859940d9a49385a2
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Message 3 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

I would post more but it's a major PITA, message length and unspecific HTML formatting issues (I'm just cut/pasting from the modem's page)

Dialled the 150 line check, turned up nothing.

The most recent network log has:

"12/03/2023 05:56:51 - critical - No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;"

Which has a T3 timeout, but in general the entries in the log don't coincide with the connection stalls of which I'm getting a dozen or so a day.

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Message 4 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

Break it into separate entries. The HTML error get auto corrected by the board software it you just accept them. I always get these when I copy/paste on my iPad Pro.


Tudor
There are 10 types of people: those who understand binary and those who don't and F people out of 10 who do not understand hexadecimal c1a2a285948293859940d9a49385a2
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Message 5 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

Okay, here goes:

Cable Modem StatusItem Status Comments

Acquired Downstream Channel (Hz)
299000000
Locked
Ranged Upstream Channel (Hz)
43100000
Locked
Provisioning State
Online
 

 

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Message 6 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
12990000005.140256 qam21
21390000006.540256 qam1
31470000006.440256 qam2
4155000000640256 qam3
5163000000640256 qam4
6171000000640256 qam5
71790000005.940256 qam6
81870000005.940256 qam7
91950000005.540256 qam8
102030000005.340256 qam9
112110000005.140256 qam10
122190000005.340256 qam11
132270000005.340256 qam12
14235000000540256 qam13
152430000004.940256 qam14
16251000000540256 qam15
17259000000540256 qam16
182670000005.340256 qam17
19275000000540256 qam18
202830000005.140256 qam19
212910000005.140256 qam20
223070000005.440256 qam22
233150000005.440256 qam23
243230000005.140256 qam24


Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked40.3599711698
2Locked40.972415597
3Locked40.976847554
4Locked40.3762114829
5Locked40.3774613349
6Locked40.977868805
7Locked40.981418476
8Locked40.378146531
9Locked40.3772612347
10Locked40.3727714544
11Locked40.3689214848
12Locked40.971477649
13Locked40.369919490
14Locked40.3648910130
15Locked40.3625212034
16Locked40.9619512981
17Locked40.362109651
18Locked40.9612215792
19Locked40.3568410370
20Locked40.3555912892
21Locked40.3590611470
22Locked40.3518412778
23Locked40.3545810560
24Locked40.3582511212
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Message 7 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

14310000043512064 qam10
22360000044512064 qam13
33010000044.5512064 qam12
43660000044.5512064 qam11
54960000043512064 qam9



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA00120
2ATDMA00220
3ATDMA00120
4ATDMA0060
5ATDMA00150
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Message 8 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

General Configuration

Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
xv9873254k;fg87dsfd;kfoA,


Primary Downstream Service Flow

SFID2294
Max Traffic Rate287500061
Max Traffic Burst42600
Min Traffic Rate0


Primary Upstream Service Flow

SFID2293
Max Traffic Rate27500061
Max Traffic Burst42600
Min Traffic Rate0
Max Concatenated Burst42600
Scheduling TypeBestEffort
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Message 9 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

Network Log

Time Priority Description

12/03/2023 05:56:51criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/03/2023 14:48:9noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/03/2023 14:48:9ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/03/2023 02:59:58criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/03/2023 02:48:9noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
08/03/2023 02:48:9ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/03/2023 15:33:36criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/03/2023 14:48:9noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
04/03/2023 14:48:9ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/03/2023 13:42:19criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/03/2023 02:48:10noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/03/2023 02:48:10ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/02/2023 13:08:58criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/02/2023 14:48:9noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/02/2023 14:48:9ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/02/2023 14:14:59criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/02/2023 10:10:40noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/02/2023 10:10:40ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/02/2023 20:26:16criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/02/2023 13:55:41noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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blumf
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Message 10 of 14
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Re: Connection Keeps Stalling, Modem Shows RS Errors

Ah, just got a stall (been pretty good today until now) and I see the T3 Timeout has clicked up one.

 

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1ATDMA00130
2ATDMA00220
3ATDMA00120
4ATDMA0060
5ATDMA00150

 

It's a Hub 3, can not remember how long we've had it, but years. Maybe on it's way out?

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