Virgin Media Community

[buzznz]

Hi there,

Setup - VM Hub 3 (modem mode) and wired (Cat 6) Deco M4 router connected to it.

On Sat 20th we suddenly lost connection. Since then we've reset the router and rebooted the Hub, establishing a connection again, but we're now experiencing inconsistent speeds across LAN and WiFi, ranging from 4Mbps to 100Mbps (our plan is 100 down).

After doing some research and logging network logs, I believe there is an issue with our line or the hub. I've notice we only have one upstream when we should have 4. Hub data below. 

Can someone please advise on how to resolve this, a flat of 4 have been working on 4G because the connection is unreliable.

Cheers,

Michael

Status

Item Status Comments

Acquired Downstream Channel (Hz)	203000000	Locked
Ranged Upstream Channel (Hz)	32600040	Locked
Provisioning State	Online

Downstream bonded channels

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

1	203000000	0.9	36	256 qam	9
2	211000000	2.5	37	256 qam	10
3	219000000	3.4	25	256 qam	11
4	235000000	1.4	37	256 qam	13
5	243000000	0.7	37	256 qam	14
6	251000000	-1	36	256 qam	15
7	259000000	-2.5	35	256 qam	16
8	267000000	-3.7	34	256 qam	17
9	275000000	-2.5	35	256 qam	18
10	283000000	-0.5	36	256 qam	19
11	291000000	0.5	37	256 qam	20
12	299000000	3.5	38	256 qam	21
13	307000000	1.2	37	256 qam	22
14	315000000	3.4	38	256 qam	23
15	323000000	3.5	38	256 qam	24
16	331000000	4.3	38	256 qam	25
17	339000000	4.5	38	256 qam	26
18	347000000	4.6	38	256 qam	27
19	355000000	6.1	38	256 qam	28
20	363000000	5.1	38	256 qam	29
21	371000000	6.4	38	256 qam	30
22	379000000	5	38	256 qam	31
23	387000000	4.6	38	256 qam	32

Downstream bonded channels

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

1	Locked	36.3	330858857	6330
2	Locked	37.6	207493110	18346
3	Locked	25.6	30708751	1312217077
4	Locked	37.3	46574	1692
5	Locked	37.6	20463	1777
6	Locked	36.3	28655	2652
7	Locked	35.5	42099	2560
8	Locked	34.4	82918	3846
9	Locked	35.5	33013	2265
10	Locked	36.3	20951	1806
11	Locked	37.3	11103	1532
12	Locked	38.6	5639	1293
13	Locked	37.6	7250	1089
14	Locked	38.6	3037	705
15	Locked	38.9	2075	627
16	Locked	38.6	1611	582
17	Locked	38.9	1113	399
18	Locked	38.9	848	394
19	Locked	38.6	978	138
20	Locked	38.9	1200	62
21	Locked	38.9	913	43
22	Locked	38.6	916	16
23	Locked	38.9	1238	13

Upstream bonded channels

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

1

32600040

57

5120

64 qam

9

Upstream bonded channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1

ATDMA

0

0

0

0

General Configuration

Network access	Allowed
Maximum Number of CPEs	1
Baseline Privacy	Enabled
DOCSIS Mode	Docsis30
Config file	cmreg-vmdg505-bbt057+voc-b.cm

Primary Downstream Service Flow

SFID	741326
Max Traffic Rate	117000047
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	741325
Max Traffic Rate	10500047
Max Traffic Burst	16320
Min Traffic Rate	0
Max Concatenated Burst	16320
Scheduling Type	BestEffort

[legacy1]

Your upstream power is too high and SnR downstream is low.

[buzznz]

Will also note that the connection has been a solid 100Mbps down since we changed our setup to modem mode + Deco, 3 months ago

[buzznz]

Thanks for the response.

Does that indicate a faulty Hub or a issue with the line?

Cheers

[legacy1]

Your connection needs to be looked at.