Intermittent drop outs, MS Teams, Twitch, Discord, VPN

[radiokid]

Hi

My Virgin connection seems to be "glitching" for want of a better word. It doesn't disconnect fully and the speed is fine but certain applications experience drop outs, for a few seconds.

Microsoft Teams calls will drop periodically, sometimes just freezing sometimes disconnecting

Twitch streams display rotating wheel indicating a buffering issue, happens regardless of stream being watched

Discord will randomly disconnect from voice chats, again only for a second or two.

VPN will loose connection then reconnect within a few seconds.

Online gaming can also be affected, although not very clear when this happens. Speed of connection is fine and downloading files is also fine. Watching Netflix/Youtube doesnt seem to be affected although I imagine they buffer the stream ahead of it being watched.

Let me know what kind of stats, monitoring I need to supply for any assistance that can be given.

Tom.

[radiokid]

[legacy1]

are you in router mode?

Your BQM shows a problem 

[radiokid]

No its in modem mode, should have said from the start.

[legacy1]

Could be a faulty Ethernet port try changing to another port on the hub if the hub allows it.

What own router are you using? You may have to test with a PC to the hub in modem mode with another BQM to see if it drops.

You could run in router mode to test BQM to the hub not that I like to suggest that the problem is not likely your kit.

does the hub how T# timeouts?

[radiokid]

Ok, but am I right in thinking that the regular packet loss as shown by the BQM graph is showing packet loss in my WAN connection and nothing to do with my LAN setup. Packet loss percentage seems to be around 5% mark at regular'ish intervals.

[radiokid]

Cable Modem StatusItem Status CommentsChannel Overview Downstream Upstream

Cable Modem Status	Online	DOCSIS 3.1
Primary downstream channel	Locked	SC-QAM
DOCSIS 3.0 channels	32	5
DOCSIS 3.1 channels	1	1

3.0 Downstream channels

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

1	138750000	10.8	40.4	QAM256	1
33	394750000	9.7	40.4	QAM256	33
2	146750000	10.8	40.4	QAM256	2
4	162750000	10.3	40.4	QAM256	4
5	170750000	10.1	40.4	QAM256	5
3	154750000	10.7	40.4	QAM256	3
36	418750000	9	38.6	QAM256	36
8	194750000	10	40.4	QAM256	8
9	202750000	9.8	40.9	QAM256	9
37	426750000	9.4	38.6	QAM256	37
6	178750000	10	40.4	QAM256	6
12	226750000	9.8	40.4	QAM256	12
13	234750000	9.6	39	QAM256	13
7	186750000	10.1	40.9	QAM256	7
40	450750000	9.8	39	QAM256	40
16	258750000	9.7	38.6	QAM256	16
17	266750000	9.7	40.4	QAM256	17
41	458750000	9.8	40.4	QAM256	41
10	210750000	9.9	40.4	QAM256	10
20	290750000	8.7	39	QAM256	20
21	298750000	8.8	39	QAM256	21
11	218750000	9.7	40.4	QAM256	11
44	482750000	8.9	40.4	QAM256	44
24	322750000	9	39	QAM256	24
14	242750000	9.7	40.4	QAM256	14
45	490750000	9	39	QAM256	45
15	250750000	9.4	39	QAM256	15
18	274750000	9.3	39	QAM256	18
19	282750000	9	38.6	QAM256	19
22	306750000	8.8	39	QAM256	22
48	514750000	8.5	39	QAM256	48
23	314750000	9.4	39	QAM256	23

[radiokid]

3.0 Downstream channels

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

1	Locked	40.366287	0	0
33	Locked	40.366287	0	0
2	Locked	40.366287	0	0
4	Locked	40.366287	0	0
5	Locked	40.366287	0	0
3	Locked	40.366287	0	0
36	Locked	38.605377	0	0
8	Locked	40.366287	0	0
9	Locked	40.946209	0	0
37	Locked	38.605377	0	0
6	Locked	40.366287	0	0
12	Locked	40.366287	0	0
13	Locked	38.983261	0	0
7	Locked	40.946209	0	0
40	Locked	38.983261	0	0
16	Locked	38.605377	0	0
17	Locked	40.366287	0	0
41	Locked	40.366287	0	0
10	Locked	40.366287	0	0
20	Locked	38.983261	0	0
21	Locked	38.983261	0	0
11	Locked	40.366287	0	0
44	Locked	40.366287	0	0
24	Locked	38.983261	0	0
14	Locked	40.366287	0	0
45	Locked	38.983261	0	0
15	Locked	38.983261	0	0
18	Locked	38.983261	0	0
19	Locked	38.605377	0	0
22	Locked	38.983261	0	0
48	Locked	38.983261	0	0
23	Locked	38.983261	0	0

3.1 Downstream channels

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

159

96

4K

1840

QAM4096

759

3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

159

Locked

42

7.4

3683868309

0

[radiokid]

3.0 Upstream channels

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

1	36600000	38.8	5120 KSym/sec	QAM64	3
2	23600000	38.3	5120 KSym/sec	QAM64	5
3	30100000	38.3	5120 KSym/sec	QAM64	4
4	43100000	38.8	5120 KSym/sec	QAM64	2
5	49600000	38.8	5120 KSym/sec	QAM64	1

3.0 Upstream 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
5	ATDMA	0	0	0	0

3.1 Upstream channels

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

6

10.0

33.2

2K

QAM8

3.1 Upstream channels

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

6

OFDMA

200

53.9

2

0

General Configuration

Network access	true
Maximum Number of CPEs	1
Baseline Privacy	true
DOCSIS Mode	3.1
Config file	54k;fg87dsfd;kfoA,.iyewrk

Primary Downstream Service Flow

SFID	5132
Max Traffic Rate	1200000450
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	5131
Max Traffic Rate	110000274
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	bestEffort

Network Log

Time Priority Description

Fri 23/02/2024 03:36:46	6	US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: .;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Fri 23/02/2024 02:11:36	3	No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Thu 22/02/2024 21:56:36	6	US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: .;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Thu 22/02/2024 21:56:36	5	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;
Thu 22/02/2024 19:26:34	6	US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 11.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Thu 22/02/2024 19:26:34	5	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;
Thu 22/02/2024 18:10:37	6	DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Thu 22/02/2024 18:10:37	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Thu 22/02/2024 06:26:14	6	US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: .;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Thu 22/02/2024 06:26:14	5	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;
Wed 21/02/2024 18:55:57	6	US profile assignment change. US Chan ID: 6; Previous Profile: ; New Profile: 12.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Wed 21/02/2024 18:38:58	3	No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Wed 21/02/2024 17:26:05	6	US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Wed 21/02/2024 17:26:05	5	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;
Wed 21/02/2024 16:51:44	3	No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Tue 20/02/2024 23:25:52	6	US profile assignment change. US Chan ID: 6; Previous Profile: 11; New Profile: 12.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Tue 20/02/2024 23:25:52	5	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;
Tue 20/02/2024 15:55:37	6	US profile assignment change. US Chan ID: 6; Previous Profile: 12; New Profile: .;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
Tue 20/02/2024 15:55:37	5	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;

[Client62]

The 3.0 DOCSIS Downstream power levels are very high to too high. 

Has 6 dB or even a 10 dB attenuator been removed from the feed to the VM Hub ?