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peteblanchard
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Lost MDD Timeout

Hi - having intermittant drop outs with a wired connection - happens every few days for 15-30 mins.  Any suggestions?  Log shows:

29/06/2021 11:10:31criticalReceived Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:09:25noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:08:33Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:08:33criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:08:32Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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lotharmat
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Re: Lost MDD Timeout

Lost MDD Timeout; Refers to loss of system messaging between hub and CMTS, despite how that sounds, MDD timeouts are usually of no significance to the user, but sometimes crops up with the other moder serious errors.

(from https://community.virginmedia.com/t5/Gaming-Support/Can-someone-help-me-with-these-errror-messages-p...)

Can you post up the rest of the Hub stats (up and downstream - See if we can see what may be going on!



------------------------------------------------------------------
Hub 3 - Modem Mode - TP-Link Archer C7

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peteblanchard
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Re: Lost MDD Timeout

Thanks - here's the full log:

29/06/2021 11:50:40noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:33:16criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:12:33noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:10:31criticalReceived Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:09:25noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:08:33Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:08:33criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
29/06/2021 11:08:32Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2021 13:32:36criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2021 00:59:33noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/06/2021 00:59:33ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/06/2021 19:41:11criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/06/2021 12:59:33noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/06/2021 12:59:33ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/06/2021 05:23:24criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/06/2021 00:59:33noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/06/2021 00:59:33ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/06/2021 11:08:26criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 08:40:47noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/06/2021 01:15:9noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057+voc-b.cm modified;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

13867500002.238256 qam32
22027500002.237256 qam9
3210750000237256 qam10
42187500001.937256 qam11
52267500001.737256 qam12
62347500001.737256 qam13
72427500001.737256 qam14
82507500001.237256 qam15
92587500000.737256 qam16
102667500000.237256 qam17
11274750000137256 qam18
122827500002.538256 qam19
132907500002.738256 qam20
142987500002.938256 qam21
153067500002.738256 qam22
16314750000338256 qam23
17322750000338256 qam24
183307500002.938256 qam25
19338750000338256 qam26
203467500002.738256 qam27
213547500002.738256 qam28
223627500002.738256 qam29
233707500002.738256 qam30
243787500002.738256 qam31



Downstream bonded channels

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

1Locked38.9140
2Locked37.680
3Locked37.680
4Locked37.6100
5Locked37.680
6Locked37.680
7Locked37.680
8Locked37.390
9Locked37.6150
10Locked38.6100
11Locked37.630
12Locked37.650
13Locked38.950
14Locked37.670
15Locked38.960
16Locked38.6100
17Locked38.9230
18Locked38.6220
19Locked38.6220
20Locked38.6230
21Locked38.9190
22Locked38.670
23Locked38.970
24Locked38.970

 

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peteblanchard
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Re: Lost MDD Timeout

Upstream bonded channels

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

13939997941.7512064 qam12
23260000041.8512064 qam13
34620000241.8512064 qam11
45369994241.8512064 qam10



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
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lotharmat
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Re: Lost MDD Timeout

Hmmmm - the actual stats look fine from where I'm sitting.

Hang tight for VM Staff to look into it!

In the meantime:

Also, set up a 'Broadband Quality Monitor'. This will monitor the state of your connection and record any network dropouts etc - You can do this at ThinkBroadband (https://www.thinkbroadband.com/broadband/monitoring/quality)
Give it a while to gather data and then click 'Share Live graph' and paste the 'Direct Link' into the forum!



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Hub 3 - Modem Mode - TP-Link Archer C7

Akua_A
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Re: Lost MDD Timeout

Hi @peteblanchard,

 

Welcome to our community forums and thank you for your first posts. 

 

Sorry to hear you have been experiencing intermittent broadband service. We can understand the inconvenience this may have caused you and we want to do our best to help.

 

I have been able to access your account using forum details. There is currently a planned outage that may be affecting your service. Our engineers are aware of this and are working to resolve this as soon as possible. The estimated fix time is  01 JUL 2021 15:00.

 

Please let us know if the issues persist and if you need any further help.

 

Thanks,

Akua_A
Forum Team



New around here? To find out more about the Community check out our Getting Started guide


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