Virgin Media Community

[monkey64]

Hi

I connect via wired ethernet to my Hub 3 and my broadband connection is intermittant.  I can be browsing then the connection drops and comes back around 30 seconds later.  It's very annoying!  I have a couple of PC's (all wired) which exhibit the same behaviour.  Of course I have reset the Hub and swapped out cables etc but nothing helps.  I'm trying to work from home but it's almost impossible.

If I log into my account and run the broadband test, it mostly shows there are no problems because the internet comes online just before I perform the test.  There are quite a few errors shown in the network log of the hub:

13/07/2020 14:01:8 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/07/2020 13:21:1 Error DHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/07/2020 21:38:9 Error DHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

Can anyone help?

Thanks

[jbrennand]

Looks like you image is rejected because it has "personal info in it.

Can you do it this way..

Copy/paste 3 FULL sets of data onto here – from the Downstream, Upstream, & Network Logs pages. Don't worry too much about the formatting it can be easily read & DON’T include personal data, i.p.'s, or MAC addresses - blank them out - if you copy/paste the data, the board software will do this for you (you may need to click the "submit" button a second time for it to send).

Also, in the meantime, (if you haven’t already) set up a free “Broadband Quality Monitor” to continually monitor the state of your connection and record any true network dropouts - it will thus allow you to differentiate between those and simple wifi dropouts. It does it 24/7/365 and it keeps a visual record of any/all of your network disconnections, useful data to have to match to the Network logs (in your Hub settings) and also in discussions with VM - note it will take a few hours to start seeing a sensible picture - post up the “link” when you have the first 24h period.

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

[monkey64]

John,

Thanks for the reply.  Have signed up for Broadband Quality Monitor.  Here goes...

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 187000000 -2.5 40 256 qam 7
2 195000000 -2.7 40 256 qam 8
3 203000000 -2.9 40 256 qam 9
4 211000000 -3 38 256 qam 10
5 219000000 -3 40 256 qam 11
6 227000000 -2.9 40 256 qam 12
7 235000000 -3 38 256 qam 13
8 243000000 -3 38 256 qam 14
9 251000000 -3 40 256 qam 15
10 259000000 -3 40 256 qam 16
11 267000000 -2.7 40 256 qam 17
12 275000000 -2.9 40 256 qam 18
13 283000000 -2.7 38 256 qam 19
14 291000000 -2.9 37 256 qam 20
15 299000000 -2.7 38 256 qam 21
16 307000000 -2.9 40 256 qam 22
17 315000000 -2.7 40 256 qam 23
18 323000000 -2.7 40 256 qam 24
19 379000000 -3 40 256 qam 25
20 387000000 -3.2 40 256 qam 26
21 395000000 -3 40 256 qam 27
22 403000000 -3 40 256 qam 28
23 411000000 -3 40 256 qam 29
24 419000000 -3.5 40 256 qam 30

Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 40.3 55 0
2 Locked 40.3 53 0
3 Locked 40.3 67 0
4 Locked 38.9 74 0
5 Locked 40.3 55 0
6 Locked 40.3 68 0
7 Locked 38.9 95 0
8 Locked 38.9 127 0
9 Locked 40.3 90 0
10 Locked 40.3 116 0
11 Locked 40.3 109 0
12 Locked 40.3 66 0
13 Locked 38.6 686 0
14 Locked 37.3 1354844 0
15 Locked 38.9 60 0
16 Locked 40.3 51 0
17 Locked 40.9 64 0
18 Locked 40.9 38 0
19 Locked 40.3 66 0
20 Locked 40.3 84 0
21 Locked 40.3 52 0
22 Locked 40.9 66 0
23 Locked 40.3 78 0
24 Locked 40.3 87 0

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 53700056 3.675 5120 64 qam 6
2 60300147 3.75 5120 64 qam 5
3 46200175 3.65 5120 64 qam 7
4 39399987 3.625 5120 64 qam 8

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 0 0
3 ATDMA 0 0 0 0
4 ATDMA 0 0 0 0

Network Log

20/07/2020 13:13:23 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:33 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/07/2020 09:31:23 Error DHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
16/07/2020 13:46:15 Error DHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/07/2020 14:01:8 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/07/2020 13:21:1 Error DHCP REBIND WARNING - Field invalid in response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/07/2020 21:38:9 Error DHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/07/2020 07:07:13 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/07/2020 05:55:21 Error DHCP RENEW sent - No response for IPv4;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2020 09:57:38 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2020 09:57:31 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2020 09:57:26 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2020 09:57:26 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2020 09:57:26 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2020 09:57:26 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2020 09:57:25 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:32 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/07/2020 10:36:35 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/07/2020 10:25:14 notice NOTICE ATOM is restarted as part of Self Healing Mechanism;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:34 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[jbrennand]

Stats look ok to me - although down channel 14 has a lot of preRS errors but seemingly all corrected (0 post errors) - I dunno if that is an indicator of an issue - hopefully someone else will comment. The BQM should be a good indicator.

[monkey64]

Hi John

Here is my BQM for yesterday.  I'm not sure whether the yellow spikes indicate an issue as such [?]  We did have some dropouts yesterday but unlike the previous day, we could at least use the connection.  The dropouts lseem to last for about 10 seconds.  It feels like the VM network is overloaded, trips and then resets itself a couple of seconds later.  What do you think?

[jbrennand]

The BQM shows no evidence (I can see) of network disconnections - these are usually evidenced by full height vertical red bars that last for the duration of the "downtime". Ping intervals are 1 second - so anyhing of that length and above, not received back, will show. See here for explanationss

https://www.thinkbroadband.com/faq/broadband-quality-monitor

Does this time-span cover your known down times and what does the network log show at those times as well?
If its not evident in either, they are probably just wifi connection drops.

[dtdukes86]

i have the same issue did any body fix this, we have hub3 , 2 pcs on wired conenctions with win 10 64bit and both drop out like this, only for tiny ammounts of time but connection dies and everything crashes, drive me crazy and my son crazy while gaming. logs hardly show anything, speed is 200mbs hardly using the max, driving me mental, video crash , games crash , pc tell me lost conenction and by the time you notice it its allback on again. tried to call vm buy lines are to busy to conenct the call wow! been doing it a few months so its not snow related. thoguht it was my cables router or pc , i broguht new pc and changed cables and ports. reset the router , reconfig router . the works still does it. 

[dtdukes86]

08/01/2021 14:05:3noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;08/01/2021 14:04:54Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;08/01/2021 07:54:36Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;08/01/2021 07:09:39criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;08/01/2021 01:32:48Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;07/01/2021 22:48:27criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;07/01/2021 21:47:25Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;07/01/2021 18:58:33noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;07/01/2021 07:06:53Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;07/01/2021 01:55:7criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;06/01/2021 13:29:37Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;06/01/2021 13:13:26noticeDHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt060+voc-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;06/01/2021 13:13:26ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;06/01/2021 10:48:4Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;06/01/2021 10:44:32criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;06/01/2021 09:44:8Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;06/01/2021 09:05:33Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;06/01/2021 02:53:12Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;05/01/2021 17:23:51criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;05/01/2021 07:28:30Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

[gary_dexter]

Please post your own thread for assistance