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D_T
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T3 Timeouts + Post RS Errors

Hello Virgin Media,

I don’t notice any issues with the connection, but I have noticed on my connection I keep getting T3 Timeouts on each upstream channel and Post RS Errors on every downstream channel which I believe I shouldn’t be getting. Please can you take a look at my connection and area to see if there are any current or past faults.

These power levels below are within spec aren’t they?

 

Downstream bonded channels

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

13870000003.740256 qam32
22030000004.540256 qam9
32110000004.540256 qam10
42190000004.340256 qam11
52270000004.440256 qam12
62350000004.340256 qam13
7243000000440256 qam14
8251000000440256 qam15
9259000000440256 qam16
10267000000440256 qam17
11275000000440256 qam18
122830000004.140256 qam19
13291000000440256 qam20
142990000004.540256 qam21
153070000004.540256 qam22
163150000004.540256 qam23
173230000004.640256 qam24
183310000004.540256 qam25
193390000004.440256 qam26
203470000004.140256 qam27
21355000000440256 qam28
22363000000440256 qam29
23371000000440256 qam30
243790000003.740256 qam31



Downstream bonded channels

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

1Locked40.36959
2Locked40.912058
3Locked40.311642
4Locked40.386121
5Locked40.37960
6Locked40.97262
7Locked40.310053
8Locked40.910462
9Locked40.310554
10Locked40.39763
11Locked40.911669
12Locked40.99158
13Locked40.98646
14Locked40.39752
15Locked40.312257
16Locked40.97450
17Locked40.98260
18Locked40.98654
19Locked40.38158
20Locked40.910573
21Locked40.37378
22Locked40.36271
23Locked40.38547
24Locked40.311353

 

Upstream bonded channels

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

13939999145512064 qam4
24619998345512064 qam3
35369999645512064 qam2
46029999845512064 qam1



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0070
2ATDMA0040
3ATDMA0040
4ATDMA0030



Thanks,

D_T

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Tudor
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Re: T3 Timeouts + Post RS Errors

Not good, you also have a lot of T4's which are bad. These stats are accumulative since the hub was last power cycled. So please power cycle your hub and post a new set of stats after a few hours. We can then see the current figures.


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Re: T3 Timeouts + Post RS Errors

Check with Area faults on 0800 561 0061 or if you have a VM landline 150 as small local faults are not listed on the VM status page.

The PostRS errors should be zero, and yes, there are too many T3 errors.  If you reboot the Hub to reset the counters and keep an eye on the errors.  If they rise quickly, VM will need to fix that.

Also post your Network log before you reset the Hub so we can see the historical information.

For you benefit I would suggest you setup a BQM here www.thinkbroadband.com/ping

Once done, post the shared graph for comment. 

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Message 4 of 21
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Re: T3 Timeouts + Post RS Errors

Hello Tudor,

Thanks for viewing and replying to my post.

I only have T3 Timeouts, I’ll include a screenshot. I will reboot the hub shortly and post a fresh set of stats in a couple of hours.

 

315D0069-598F-44E1-BD24-62336B4650DB.jpeg


Thanks,

D_T

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Message 5 of 21
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Re: T3 Timeouts + Post RS Errors

Hello Adduxi,

Thanks for viewing and replying to my post.

Do you know if it is allowed and safe to post the network log as it contains MAC addresses?

Thanks,

D_T

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Message 6 of 21
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Re: T3 Timeouts + Post RS Errors

When you post your network logs, the Board software will remove all the MAC address etc.  So, yes safe to post.

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Re: T3 Timeouts + Post RS Errors

Hello Adduxi,

Thanks again for viewing and replying to my post.

Here is the network log below and my live broadband quality monitor. I will reboot the hub at 17:30 and post the stats again just after 22:30.

 

Network Log

Time Priority Description

12/11/2021 11:03:13noticeREMOTE login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/11/2021 05:20:50criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/11/2021 13:10:26noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
09/11/2021 13:10:26ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/11/2021 21:57:47criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/11/2021 01:10:26noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
06/11/2021 01:10:26ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/11/2021 17:35:23criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/11/2021 13:10:26noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
02/11/2021 13:10:26ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/10/2021 06:42:0criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/10/2021 01:10:25noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
30/10/2021 01:10:25ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/10/2021 04:10:9criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/10/2021 23:57:32noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/10/2021 23:57:32ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/10/2021 04:20:6criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/10/2021 09:30:14noticeREMOTE login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/10/2021 05:18:51Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/10/2021 21:01:1criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;



https://www.thinkbroadband.com/broadband/monitoring/quality/share/b0bd58aab097352fde4558655c66915222...

Thanks,

D_T

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Tudor
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Message 8 of 21
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Re: T3 Timeouts + Post RS Errors

Sorry I meant Post RS errors not T4’s.


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Message 9 of 21
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Re: T3 Timeouts + Post RS Errors

So far not a lot to go on, your BQM is very good at the moment.  You just need to keep an eye on the PostRS errors, rising errors are not good.  I very rarely reboot my IT kit and I think the uptime at the moment is about 130 days, and I have a grand total of 0 PostRS errors on my Hub 3.  However I use Modem mode only.

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Re: T3 Timeouts + Post RS Errors

Hello Tudor,

Thanks again for viewing and replying to my post.

How do these new set of stats look since I rebooted the hub just after 17:30?

 

Downstream bonded channels

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

13870000003.540256 qam32
22030000004.540256 qam9
32110000004.440256 qam10
42190000004.340256 qam11
52270000004.340256 qam12
62350000004.140256 qam13
7243000000440256 qam14
8251000000440256 qam15
9259000000440256 qam16
10267000000440256 qam17
11275000000440256 qam18
122830000004.140256 qam19
13291000000440256 qam20
142990000004.540256 qam21
153070000004.540256 qam22
163150000004.540256 qam23
173230000004.640256 qam24
183310000004.540256 qam25
193390000004.440256 qam26
203470000004.140256 qam27
21355000000440256 qam28
22363000000440256 qam29
233710000003.940256 qam30
243790000003.740256 qam31



Downstream bonded channels

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

1Locked40.300
2Locked40.950
3Locked40.360
4Locked40.350
5Locked40.350
6Locked40.950
7Locked40.350
8Locked40.350
9Locked40.340
10Locked40.360
11Locked40.360
12Locked40.950
13Locked40.350
14Locked40.350
15Locked40.950
16Locked40.950
17Locked40.940
18Locked40.960
19Locked40.940
20Locked40.370
21Locked40.350
22Locked40.950
23Locked40.360
24Locked40.350

 

Upstream bonded channels

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

13939996445512064 qam4
24620001245512064 qam3
35370001945512064 qam2
46029999845512064 qam1



Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1ATDMA0000
2ATDMA0000
3ATDMA0000
4ATDMA0000



Thanks,

D_T

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