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Critical error and drop outs

Hi, I have recently been getting random drop outs of connection. I've done several reboots, split 2 and 5ghz, turned off WPS.

Can anyone see anything in the below?

Network Log

Time Priority Description

20/10/2020 13:59:24noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 10:05:43criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 00:37:4noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt057-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 00:37:4ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 00:06:52criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 00:06:20Warning!B-INIT-RNG Failure - Retries exceeded;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 00:04:44criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 00:04:35Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 00:02:13criticalReceived 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;
20/10/2020 00:01:32Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
20/10/2020 00:01:29criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
19/10/2020 22:34:20ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 11:38:34criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 09:23:51noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 09:23:49Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
15/10/2020 03:34:50ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/10/2020 18:38:47criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/10/2020 17:05:27ErrorDHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/10/2020 11:38:28noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/10/2020 01:32:45criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
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Re: Critical error and drop outs

Downstream bonded channels

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

15550000008.936256 qam19
24750000009.337256 qam9
34830000009.137256 qam10
44910000009.637256 qam11
54990000009.937256 qam12
65070000009.437256 qam13
75150000009.137256 qam14
85230000009.537256 qam15
95310000009.837256 qam16
105390000009.836256 qam17
115470000009.336256 qam18
12563000000936256 qam20
135710000009.536256 qam21
145790000009.136256 qam22
155870000008.136256 qam23
16595000000836256 qam24
17603000000936256 qam25
186110000009.436256 qam26
196190000008.136256 qam27
20627000000836256 qam28
216350000008.536256 qam29
22643000000936256 qam30
236510000008.536256 qam31
24659000000836256 qam32



Downstream bonded channels

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

1Locked36.65290
2Locked37.31850
3Locked37.62150
4Locked37.32060
5Locked37.62370
6Locked37.33120
7Locked37.33270
8Locked37.63670
9Locked37.33490
10Locked36.64390
11Locked36.35040
12Locked36.64440
13Locked36.34920
14Locked36.66500
15Locked36.37790
16Locked36.68840
17Locked36.37700
18Locked36.36280
19Locked36.39210
20Locked36.39020
21Locked36.68300
22Locked36.67750
23Locked36.39910
24Locked36.39120

 

Upstream bonded channels

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

1394000003.9512064 qam4
2462000003.9512064 qam3
3537000003.9512064 qam2
4603000003.9512064 qam1



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000
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Very Insightful Person
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Re: Critical error and drop outs

Nothing I'm spotting, other than that downstream power is all very high.  Nominally it is within the rough guideline of "no more than +10 dBmV", but it might be enough to cause problems, because DOCSIS (the protocol to transmit internet connections over a coaxial connection) is a very strange beast.  The very nature of Network log means that it is full of complicated sounding and worrying errors, but I'm not spotting anything obviously sinister in yours.

Suggest you set up a Broadband Quality Monitor, leave it to accumulate data for 24 hours, and then post a ling to shared live graph back here.

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Re: Critical error and drop outs

Thanks. I should also add that i did DIY setup as the house already had virgin before i moved in.

I could find no virgin wall socket on any wall, only one cable upstairs that made the virgin modem live.

The delivery from virgin came with a cable to fit from the box on the wall (there isn't one) to the virgin hub.... as per above, i wasn't able to fit this.

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Alessandro Volta
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Re: Critical error and drop outs

Are you saying that you used third party co-ax and end fittings ?

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Mike Robinson
Semi-Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.

My Broadband Ping - Mike Robbo
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Re: Critical error and drop outs

Hi,

The instructions on the home setup advised me to locate the virgin wall socket (image below is what i don't have).

mike654_0-1603205946524.png

Upstairs i found a cable coming through the wall which looked like a virgin cable. I plugged it into to Hub and it made it live.

The home setup kit came with an isolator cable, it didn't fit the connection on the cable coming through the wall. Therefore the isolator cable isn't in use.

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Re: Critical error and drop outs

Good Afternoon mike654,

 

Thanks for your post on our Community Forums and a very warm welcome to you!

 

Sorry to see you've been having issues with your connection and have been experiencing drop outs.

 

I can see that there are are a few downstream channels that are currently out of spec. I can also see that the hub is has currently been up for 12 days, are you able to reboot the equipment, or possibly even perform a pin hole reset on the equipment and set up a BQM to monitor over the next 48 hours?

 

I'd like to see if this can resolve this issue for you, before we consider booking out an engineer for you

 

Kindest regards,

 

David_Bn

 

 

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