Looks like my connection is being a bit glitchy at the moment (sometimes dropped packets). Restarted my modem yesterday which vaguely helped, but still seeing frequent T2 and T3 timeouts. In addition to this, I currently have a 6db attenuator, and whilst I would love to increase this to 9 or 12db, however my upstream then goes out of spec to 53/54 or higher causing even worse connection issues. In an ideal world I think they would have used a forward path equaliser in the past (which I believe leaves the upstream largely untouched), but I am not sure Virgin Media does this anymore. Since the recent warming weather changes, things have definitely gotten worse.I did get a tech out a few months back who moved me onto another tap which did definitely help, but I get the feeling there is a bit of noise on my cable. There is also a possibility I might need a repull based on the numbers I am seeing, possibly even the cabling from street to house/room.Ideally hoping someone from the forum team can take a quick look at this, as I know if I contact customer service, they will literally have no clue what I am talking about.Cable stats below:3.0 Downstream channelsChannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID 13310000008.740QAM 25625213900000010.540QAM 2561314700000010.340QAM 256241550000009.740QAM 256351630000009.340QAM 25646171000000940QAM 256571790000008.940QAM 256681870000008.840QAM 256791950000008.840QAM 2568102030000008.840QAM 2569112110000008.940QAM 25610122190000008.940QAM 25611132270000008.740QAM 25612142350000008.840QAM 25613152430000008.940QAM 25614162510000008.741QAM 25615172590000008.641QAM 25616182670000008.441QAM 25617192910000008.840QAM 2562020299000000941QAM 25621213070000009.141QAM 2562222315000000941QAM 25623233230000008.940QAM 25624243390000008.840QAM 25626253470000008.840QAM 25627263550000008.841QAM 2562827363000000941QAM 2562928371000000941QAM 25630293790000009.241QAM 25631303870000008.841QAM 2563231395000000941QAM 25633324030000008.641QAM 256343.0 Downstream channelsChannel Locked Status RxMER (dB) Pre RS Errors Post RS Errors 1Locked407902Locked401603Locked401604Locked40105Locked40206Locked40207Locked40208Locked401109Locked4010010Locked409011Locked4013012Locked4011013Locked408014Locked4010015Locked4010016Locked4116017Locked419018Locked4119019Locked4035020Locked4133021Locked4142022Locked4172023Locked4065024Locked40105025Locked40116026Locked41125027Locked41110028Locked4198029Locked41132030Locked41151031Locked4163032Locked417103.1 Downstream channelsChannel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz) 159944K1840QAM 409611083.1 Downstream channelsChannel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile) 159Locked438.418095552680 3.0 Upstream channelsChannel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID 04960000046.85120QAM 64114310000046.85120QAM 642236600000475120QAM 643330100000475120QAM 64442360000047.55120QAM 6453.0 Upstream channelsChannel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts 0ATDMA01301ATDMA01002ATDMA01003ATDMA01004ATDMA01003.1 Upstream channelsChannel Channel Width (MHz) Power (dBmV) FFT Type Modulation 61040.52KQAM 2563.1 Upstream channelsChannel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts 6OFDMA2007400000000 Network LogTime Priority Description 04-02-2024 14:58:01warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;04-02-2024 14:58:01noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;04-02-2024 13:50:20noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;04-02-2024 13:50:20warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;04-02-2024 07:44:38noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;04-02-2024 07:44:38warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;04-02-2024 07:34:34noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;04-02-2024 07:34:34warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;04-02-2024 00:05:50warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:55:23errorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:49warningDynamic Range Window violation03-02-2024 14:25:49warningRNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:49noticeUS profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:49warningDBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:46criticalNo Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:46warningTCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:46noticeREGISTRATION COMPLETE - Waiting for Operational status03-02-2024 14:25:36warningDynamic Range Window violation03-02-2024 14:25:36warningREG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:36warningRNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:36warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:36warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:36warningDynamic Range Window violation03-02-2024 14:25:36warningDynamic Range Window violation03-02-2024 14:25:36warningDynamic Range Window violation03-02-2024 14:25:36warningRNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:30noticeDS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:27noticeTLV-11 - unrecognized OID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:24warningDHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:25:22noticeHonoring MDD; IP provisioning mode = IPv403-02-2024 14:25:04criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;03-02-2024 14:24:59criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;

setup a BQM post live linkBroadband Quality Monitor | thinkbroadband

All I can say is that a few of the downstream channels are out of spec but I am sure you already knew this. One for a tech again.

Travelstar wrote: I can't see how changing things to router mode will impact line conditions. The router/model will have zero impact on the actual coax line conditions.VM just want to drag your problem out really they can test some stuff over 10. but router mode lets them test speed to the hub which again is limited as it don't test over a Ethernet port should that be faulty.Setup a BQM

Yes - aware two are definitely out of spec. The real issue is if I put on a slightly higher attenuator, my upstream goes out of spec.The balance is not in my favour.

Hi Travelstar 👋.thanks for reaching out to us, apologies you are having issues with your internet service. Could you please run the diagnostics again ensuring that all third party equipment such as additional Hubs has been removed the our equipment is in router mode and post the updated results so we can look into this further.ThanksSabrina

Travelstar

Dialled in

2 years ago

Gig1 Connection stability issues

Looks like my connection is being a bit glitchy at the moment (sometimes dropped packets). Restarted my modem yesterday which vaguely helped, but still seeing frequent T2 and T3 timeouts. In addition to this, I currently have a 6db attenuator, and whilst I would love to increase this to 9 or 12db, however my upstream then goes out of spec to 53/54 or higher causing even worse connection issues. In an ideal world I think they would have used a forward path equaliser in the past (which I believe leaves the upstream largely untouched), but I am not sure Virgin Media does this anymore. Since the recent warming weather changes, things have definitely gotten worse.

I did get a tech out a few months back who moved me onto another tap which did definitely help, but I get the feeling there is a bit of noise on my cable. There is also a possibility I might need a repull based on the numbers I am seeing, possibly even the cabling from street to house/room.

Ideally hoping someone from the forum team can take a quick look at this, as I know if I contact customer service, they will literally have no clue what I am talking about.

Cable stats below:

3.0 Downstream channels

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

1	331000000	8.7	40	QAM 256	25
2	139000000	10.5	40	QAM 256	1
3	147000000	10.3	40	QAM 256	2
4	155000000	9.7	40	QAM 256	3
5	163000000	9.3	40	QAM 256	4
6	171000000	9	40	QAM 256	5
7	179000000	8.9	40	QAM 256	6
8	187000000	8.8	40	QAM 256	7
9	195000000	8.8	40	QAM 256	8
10	203000000	8.8	40	QAM 256	9
11	211000000	8.9	40	QAM 256	10
12	219000000	8.9	40	QAM 256	11
13	227000000	8.7	40	QAM 256	12
14	235000000	8.8	40	QAM 256	13
15	243000000	8.9	40	QAM 256	14
16	251000000	8.7	41	QAM 256	15
17	259000000	8.6	41	QAM 256	16
18	267000000	8.4	41	QAM 256	17
19	291000000	8.8	40	QAM 256	20
20	299000000	9	41	QAM 256	21
21	307000000	9.1	41	QAM 256	22
22	315000000	9	41	QAM 256	23
23	323000000	8.9	40	QAM 256	24
24	339000000	8.8	40	QAM 256	26
25	347000000	8.8	40	QAM 256	27
26	355000000	8.8	41	QAM 256	28
27	363000000	9	41	QAM 256	29
28	371000000	9	41	QAM 256	30
29	379000000	9.2	41	QAM 256	31
30	387000000	8.8	41	QAM 256	32
31	395000000	9	41	QAM 256	33
32	403000000	8.6	41	QAM 256	34

3.0 Downstream channels

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

1	Locked	40	79
2	Locked	40	16
3	Locked	40	16
4	Locked	40	1
5	Locked	40	2
6	Locked	40	2
7	Locked	40	2
8	Locked	40	11
9	Locked	40	10
10	Locked	40	9
11	Locked	40	13
12	Locked	40	11
13	Locked	40	8
14	Locked	40	10
15	Locked	40	10
16	Locked	41	16
17	Locked	41	9
18	Locked	41	19
19	Locked	40	35
20	Locked	41	33
21	Locked	41	42
22	Locked	41	72
23	Locked	40	65
24	Locked	40	105
25	Locked	40	116
26	Locked	41	125
27	Locked	41	110
28	Locked	41	98
29	Locked	41	132
30	Locked	41	151
31	Locked	41	63
32	Locked	41	71

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)

159

1840

QAM 4096

1108

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)

159

Locked

8.4

1809555268

3.0 Upstream channels

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

0	49600000	46.8	5120	QAM 64	1
1	43100000	46.8	5120	QAM 64	2
2	36600000	47	5120	QAM 64	3
3	30100000	47	5120	QAM 64	4
4	23600000	47.5	5120	QAM 64	5

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

0	ATDMA	1	3
1	ATDMA	1	0
2	ATDMA	1	0
3	ATDMA	1	0
4	ATDMA	1	0

3.1 Upstream channels

Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation

40.5

QAM 256

3.1 Upstream channels

Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts

OFDMA

200

74000000

Network Log

Time Priority Description

04-02-2024 14:58:01	warning	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
04-02-2024 14:58:01	notice	US profile assignment change. US Chan ID: 6; Previous Profile: 12 13; New Profile: 11 13.;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
04-02-2024 13:50:20	notice	US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 12 13.;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
04-02-2024 13:50:20	warning	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
04-02-2024 07:44:38	notice	US profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
04-02-2024 07:44:38	warning	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
04-02-2024 07:34:34	notice	US profile assignment change. US Chan ID: 6; Previous Profile: 11 13; New Profile: 13.;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
04-02-2024 07:34:34	warning	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
04-02-2024 00:05:50	warning	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:55:23	error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:49	warning	Dynamic Range Window violation
03-02-2024 14:25:49	warning	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:49	notice	US profile assignment change. US Chan ID: 6; Previous Profile: 13; New Profile: 11 13.;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:49	warning	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:46	critical	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:46	warning	TCS Partial Service;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:46	notice	REGISTRATION COMPLETE - Waiting for Operational status
03-02-2024 14:25:36	warning	Dynamic Range Window violation
03-02-2024 14:25:36	warning	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:36	warning	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:36	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:36	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:36	warning	Dynamic Range Window violation
03-02-2024 14:25:36	warning	Dynamic Range Window violation
03-02-2024 14:25:36	warning	Dynamic Range Window violation
03-02-2024 14:25:36	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:30	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:27	notice	TLV-11 - unrecognized OID;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:24	warning	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:25:22	notice	Honoring MDD; IP provisioning mode = IPv4
03-02-2024 14:25:04	critical	No Ranging Response received - T3 time-out;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;
03-02-2024 14:24:59	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=:::::;CMTS-MAC=:::::;CM-QOS=1.1;CM-VER=3.1;

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Gig1 Connection stability issues

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