Virgin Media Community

[oztech33]

So ive had the standard lukewarm performance from the Hub 3 (bad speeds, poor wifi, generally unreliable connection). I decided to swap to a TP Link TL-WDR4900.

Instant imporvement, better Wifi, speeds more like what we're paying for (300~ MBPS).

However, every now and again the signal tanks. It sometimes happens a couple times in a day, sometimes multiple times an hour. Its most noticeable when online gaming, everything lags, voice comms garbled and delayed and DC from whatever im on. I have however run ping tests over the course of the day and found it happens even when not much is on the network.

I'm connected by cable.

I've rebooted everything.

Multiple devices affected.

Ping tests to TP-Link router are a consistant <1ms.

Ping to virgin hub fluctuates between 1ms and 11ms.

Tried tweaking MTU size incase it was dropping packets because of that but no joy. (not returned to 1500 default, confirmed this by incremental packet tests with google.com and this does seemt o be the correct value.)

Ive setup a BQM, not much on it yet but ill keep updating it here.

https://www.thinkbroadband.com/broadband/monitoring/quality/share/068d1370fe06bd65fed8629aedc55ce9d2...

[oztech33]

Hub (modem mode) stats:

Item Status Comments

Acquired Downstream Channel (Hz)	483000000	Locked
Ranged Upstream Channel (Hz)	53700000	Locked
Provisioning State	Online

Downstream bonded channels

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

1	483000000	1.2	40	256 qam	30
2	187000000	2.7	38	256 qam	7
3	195000000	3.5	40	256 qam	8
4	203000000	3.2	40	256 qam	9
5	211000000	3	40	256 qam	10
6	219000000	3	40	256 qam	11
7	227000000	2.7	40	256 qam	12
8	235000000	2	38	256 qam	13
9	243000000	1.9	40	256 qam	14
10	251000000	1.7	38	256 qam	15
11	259000000	2	38	256 qam	16
12	267000000	2.5	40	256 qam	17
13	275000000	2.2	40	256 qam	18
14	283000000	2	40	256 qam	19
15	291000000	2	40	256 qam	20
16	299000000	1.4	38	256 qam	21
17	307000000	1.7	38	256 qam	22
18	315000000	2.2	40	256 qam	23
19	323000000	2	40	256 qam	24
20	443000000	0.9	40	256 qam	25
21	451000000	0.7	40	256 qam	26
22	459000000	0.9	40	256 qam	27
23	467000000	1	40	256 qam	28
24	475000000	1.2	40	256 qam	29

Downstream bonded channels

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

1	Locked	40.3	24	0
2	Locked	38.9	886418	60434
3	Locked	40.9	185	18
4	Locked	40.3	96	17
5	Locked	40.3	61	19
6	Locked	40.9	86	19
7	Locked	40.3	124	18
8	Locked	38.9	96	16
9	Locked	40.3	56	15
10	Locked	38.9	47	13
11	Locked	38.9	36	12
12	Locked	40.3	102	15
13	Locked	40.3	26	17
14	Locked	40.3	42	18
15	Locked	40.3	32	16
16	Locked	38.9	82	17
17	Locked	38.9	46	11
18	Locked	40.3	32	9
19	Locked	40.9	52	15
20	Locked	40.3	28	0
21	Locked	40.3	24	12
22	Locked	40.9	25	15
23	Locked	40.3	26	12
24	Locked	40.3	61	12

Upstream bonded channels

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

1	53700000	44.8	5120	64 qam	2
2	39400000	43.3	5120	64 qam	4
3	46200000	44.3	5120	64 qam	3
4	60300000	44.8	5120	64 qam	1

[oztech33]

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	ATDMA	0	0	1	0
2	ATDMA	0	0	3	0
3	ATDMA	0	0	5	0
4	ATDMA	0	0	0	0

General Configuration

Network access	Allowed
Maximum Number of CPEs	1
Baseline Privacy	Enabled
DOCSIS Mode	Docsis30
Config file	,.iyewrkldJKDHSUBsgvca698

Primary Downstream Service Flow

SFID	760
Max Traffic Rate	402500089
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	759
Max Traffic Rate	38500089
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	BestEffort

Network Log

Time Priority Description

26/01/2021 13:19:21	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 13:19:15	Warning!	LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/01/2021 22:38:59	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/01/2021 15:59:32	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/01/2021 15:59:32	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
23/01/2021 00:12:42	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/01/2021 23:24:34	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/01/2021 18:43:35	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/01/2021 13:43:49	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/01/2021 13:43:49	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/01/2021 14:46:49	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/01/2021 11:16:51	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/01/2021 11:16:51	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 22:13:47	Warning!	LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 07:48:39	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 03:10:48	notice	DHCP Renew - lease parameters tftp file-cmreg-vmdg505-bbt062-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
14/01/2021 03:10:48	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/01/2021 01:58:30	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:10:56	critical	DHCP FAILED - Request sent, No response;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:09:17	critical	Received 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;

Can anyone see anything amiss that i cant?

I understand a good portion of this stuff but some of it definitely goes outside my area of understanding.