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Neato
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Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Hiya all!

We've had intermittent broadband service the past 2 days. The modem connection drops every 10 minutes or so for about 5 minutes each time. Service is fine for other Virgin Media user in our street, so the problem is likely to do with our house connection.

Below is a snapshot of our current error logs on the modem (Hub 3):

Time Priority Description

15/08/2021 20:44:21Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:41:37Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:32:10Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:31:40Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:19:21Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:17:14Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:12:44Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:03:13ErrorService Change Response rejected - Invalid transaction ID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:03:0ErrorService Add Ack rejected - Invalid transaction ID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:02:44Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:02:25ErrorService Delete Response rejected - Invalid Transaction;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:02:21ErrorService Add Ack rejected - Invalid transaction ID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:01:55Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:01:42ErrorService Delete Response rejected - Invalid Transaction;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:01:39ErrorDCC-ACK rejected authentication failure;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:01:22ErrorDCC rejected authentication failure;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:00:54ErrorService Delete Response rejected - Invalid Transaction;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:00:37ErrorService Add Ack rejected - Invalid transaction ID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 20:00:10Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/08/2021 19:59:27Error

Service Add rejected - Required parameter not present;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

 

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

1330750000-0.737256 qam25
2202750000-0.931256 qam9
3210750000-1.531256 qam10
4218750000-0.231256 qam11
5226750000-0.528256 qam12
6234750000-1.231256 qam13
7242750000-2.231256 qam14
8250750000-1.533256 qam15
9258750000-1.735256 qam16
10266750000-2.532256 qam17
11274750000-2.434256 qam18
12282750000-2.234256 qam19
13290750000-1.434256 qam20
14298750000-1.530256 qam21
15306750000-1.936256 qam22
16314750000-2.237256 qam23
17322750000-1.435256 qam24
18338750000-0.536256 qam26
19346750000-0.536256 qam27
20354750000-1.736256 qam28
21362750000-1.937256 qam29
22370750000-2.437256 qam30
23378750000-1.538256 qam31
24386750000-1.538256 qam32



Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1Locked37.31129282
2Locked31186915962022106
3Locked30.5189116631419917
4Locked30.8106391584290
5Locked28.7221898133360
6Locked31.17120969320
7Locked31.317330715968
8Locked33.9168419161183
9Locked3560631781571
10Locked32.320695352753
11Locked34.37906471723
12Locked34.986962521502
13Locked34.31372816668
14Locked30.89362890155000
15Locked36.32159155
16Locked37.334710207
17Locked35.7142241284
18Locked36.6813227
19Locked36.64063147
20Locked36.639690100
21Locked37.65648118
22Locked37.35219182
23Locked38.91169159
24Locked38.9395152

Can anyone shed some light on what the issue is so I can provide the service team with some concise information to troubleshoot it with?

Many thanks, Neato

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Andrew-G
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Yep.  Signal to noise ratio is too low on half of the downstream channels.  Could be an area SNR fault that will have a fix date/time already arranged, or may be that something's been changed relating to your particular connection.  I'll mark for the forum staff to advise, and they'll book a technician if one is needed and you haven't already got on booked.

If you're planning to phone this in then feel free, but it could be a long winded and not very satisfying experience; personally I'd wait for the forum staff to take a look.

Roger_Gooner
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Your modem is struggling to maintain a network lock. In order to rule out a problem with your equipment power off the hub, check that all coaxial connections are tight between the hub and wall socket, and power on the hub again. Post your stats and log again.

--
Hub 3.0, TP-Link Archer C8, TP-Link TL-SG108S 8-port gigabit switch, V6
My Broadband Ping - Roger's VM Broadband Connection
Robert_P
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Hi Neato,

 

Sorry to hear of the problems experienced with your broadband connection and the errors, we appreciate you taking the time to raise this via the forums and welcome to the community!

 

From looking at the connection and equipment there are some problems at the moment, there aren't any reported area issues in regards to SNR but there are issues showing in the level's which will require a technician. 

 

I'm going to send you a Private Message to get some more details from you to arrange a visit. Looking forward to hearing back from you.

 

Rob

Neato
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Thanks Roger, following your advice...

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

13307500000.440256 qam25
2202750000238256 qam9
3210750000238256 qam10
42187500001.738256 qam11
52267500001.538256 qam12
6234750000138256 qam13
7242750000140256 qam14
82507500001.240256 qam15
92587500001.238256 qam16
10266750000140256 qam17
112747500000.538256 qam18
122827500000.438256 qam19
132907500000.438256 qam20
142987500000.938256 qam21
153067500000.738256 qam22
163147500000.538256 qam23
173227500000.538256 qam24
183387500000.438256 qam26
193467500000.538256 qam27
203547500000.440256 qam28
21362750000038256 qam29
22370750000-0.240256 qam30
23378750000-0.238256 qam31
24386750000-0.440256 qam32



Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1Locked37.31129282
2Locked31186915962022106
3Locked30.5189116631419917
4Locked30.8106391584290
5Locked28.7221898133360
6Locked31.17120969320
7Locked31.317330715968
8Locked33.9168419161183
9Locked3560631781571
10Locked32.320695352753
11Locked34.37906471723
12Locked34.986962521502
13Locked34.31372816668
14Locked30.89362890155000
15Locked36.32159155
16Locked37.334710207
17Locked35.7142241284
18Locked36.6813227
19Locked36.64063147
20Locked36.639690100
21Locked37.65648118
22Locked37.35219182
23Locked38.91169159
24Locked38.9395152
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Neato
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Upstream bonded channels

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

12580000044512064 qam6
23259997444512064 qam5
33940000444512064 qam4
44619997644512064 qam3



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
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Roger_Gooner
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Your power levels are too low on several downstream channels, so a tech needs to be sent round to investigate.

--
Hub 3.0, TP-Link Archer C8, TP-Link TL-SG108S 8-port gigabit switch, V6
My Broadband Ping - Roger's VM Broadband Connection
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Robert_P
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Thanks for providing the requested details Neato, I've looked again this morning and can see you have rebooted the Hub recently. The issues that were present previously appear to have cleared up, has the connection improved?

 

If not, let me know and I will arrange the technician for you.

 

Rob

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Neato
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Thanks Rob, I'll monitor the performance through the first part of the day and let you know. The issue tends to happen around 6pm onwards, so it might be nice to have an engineer to possibly take a look if they are available. I don't think we've had an engineer check us out since we were initially hooked up over 10 years ago.

Here is the latest status:

18/08/2021 06:37:10Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

Many thanks, Neato

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Zach_R
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Re: Errors: Lost MDD Timeout - RCS Partial Service - LAN login FAILED

Hi @Neato,

I'm just checking in to see how your services have been? Have you seen an improvement?

Thanks,
 



Zach - Forum Team


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