Virgin Media Community

[theboywonder]

Was happily on 500mb service for years without issue. Took the upgrade to 1gig. New Hub4 arrived and plugged in.

Speed test now 148Mps. On old 500mb circuit with Hub 3 (same laptop, same cat6 cable) I'd consistently get the max limit on 500.

The fact im using the same equipment must mean the hub v4 or the 1gig circuit has issues.

I cannot used SamKnows RealSpeed as it says the 'device is offline'.The Hub4 is in Router Mode and I the only device connected via Cat6 cable.

Forum seems full of issues with 1gig/hub4 at the moment. 

Do I simply roll back to 500mb service as i am in the cooling off period, or does anyone have a resolution to this.

[theboywonder]

[theboywonder]

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	31	4
DOCSIS 3.1 channels	1	0

[theboywonder]

3.0 Downstream channels

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

8	467000000	5.599998	40.366287	QAM256	8
6	451000000	5.699997	40.366287	QAM256	6
7	459000000	5.699997	40.366287	QAM256	7
9	475000000	5.099998	40.366287	QAM256	9
10	483000000	4.900002	40.366287	QAM256	10
11	491000000	5.400002	40.946209	QAM256	11
12	499000000	5.400002	38.983261	QAM256	12
13	507000000	5.699997	40.366287	QAM256	13
14	515000000	5.500000	40.366287	QAM256	14
15	523000000	5.800003	40.946209	QAM256	15
16	531000000	5.500000	40.946209	QAM256	16
17	539000000	5.800003	40.366287	QAM256	17
18	547000000	5.500000	40.366287	QAM256	18
19	555000000	6.000000	40.946209	QAM256	19
20	563000000	5.500000	40.366287	QAM256	20
21	571000000	5.800003	40.366287	QAM256	21
22	579000000	5.400002	40.366287	QAM256	22
23	587000000	5.800003	40.366287	QAM256	23
24	595000000	5.400002	38.983261	QAM256	24
25	603000000	5.599998	40.366287	QAM256	25
26	611000000	5.400002	40.366287	QAM256	26
27	619000000	5.500000	38.983261	QAM256	27
28	627000000	5.199997	38.983261	QAM256	28
29	635000000	5.099998	38.605377	QAM256	29
30	643000000	5.099998	38.983261	QAM256	30
31	651000000	5.000000	38.983261	QAM256	31
32	659000000	5.000000	38.983261	QAM256	32
33	667000000	4.800003	38.605377	QAM256	33
34	675000000	4.900002	38.983261	QAM256	34
35	683000000	4.800003	38.983261	QAM256	35
36	691000000	5.000000	38.605377	QAM256	36

3.0 Downstream channels

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

8	Locked	40.366287	0	0
6	Locked	40.366287	0	0
7	Locked	40.366287	0	0
9	Locked	40.366287	0	0
10	Locked	40.366287	0	0
11	Locked	40.946209	0	0
12	Locked	38.983261	0	0
13	Locked	40.366287	0	0
14	Locked	40.366287	0	0
15	Locked	40.946209	0	0
16	Locked	40.946209	0	0
17	Locked	40.366287	0	0
18	Locked	40.366287	0	0
19	Locked	40.946209	0	0
20	Locked	40.366287	0	0
21	Locked	40.366287	0	0
22	Locked	40.366287	0	0
23	Locked	40.366287	0	0
24	Locked	38.983261	0	0
25	Locked	40.366287	0	0
26	Locked	40.366287	0	0
27	Locked	38.983261	0	0
28	Locked	38.983261	0	0
29	Locked	38.605377	0	0
30	Locked	38.983261	0	0
31	Locked	38.983261	0	0
32	Locked	38.983261	0	0
33	Locked	38.605377	0	0
34	Locked	38.983261	0	0
35	Locked	38.983261	0	0
36	Locked	38.605377	0	0

3.1 Downstream channels

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

37

96

4K

1880

QAM4096

728

3.1 Downstream channels

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

37

Locked

42

4.2

9663018

0

[theboywonder]

3.0 Upstream channels

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

1	53700000	34.020599	5120 KSym/sec	64QAM	6
2	60300000	34.020599	5120 KSym/sec	64QAM	5
3	39400000	33.020599	5120 KSym/sec	64QAM	8
4	46200000	33.270599	5120 KSym/sec	64QAM	7

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1	US_TYPE_STDMA	0	0	0	0
2	US_TYPE_STDMA	0	0	0	0
3	US_TYPE_STDMA	0	0	0	0
4	US_TYPE_STDMA	0	0	0	0

[theboywonder]

General Configuration

Network access	true
Maximum Number of CPEs	1
Baseline Privacy	true
DOCSIS Mode	3.1
Config file	cmreg-vmdg640-bbt076-b.cm

Primary Downstream Service Flow

SFID	163292
Max Traffic Rate	1230000450
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	163291
Max Traffic Rate	55000270
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	42600
Scheduling Type	bestEffort

[Travis_M]

Hi @theboywonder

Thanks for posting on our community forum!

How are you getting on now with your connection?

Regards

[theboywonder]

Hi @Travis_M, I appreciate the prompt reply.

Still not resolved. Tech support today advised me to re-configure Wifi settings, despite me advising that I'm using Cat6 connection. Thte settings change made no difference so they advised to be downgraded.

I have just been downgraded back to 500mb to see if that resolves the issue, but alas it has not. Still getting 40-80mb.

Either
1) the hub4 is faulty
2) The cabinet I'm connected to is conjested (apparently I would have been moved when going to 1gig)
3) something else

Ideally I want to go back to the Hub 3 and get put back on the previous cabinet? Is this possible?
The Hub4 still shows DOCSIS3.1 which I thougt was only used by 1gig...?

Any help is appreciated

[Andrew-G]

@theboywonder Do you know if you are on a VM FTTP (also sometimes RFoG) connection?  Reason for asking is that if you are, then I can't see anything wrong in the hub stats, but you're not on FTTP then your upstream power levels are probably too low. 

New build and recent network extensions are mostly FTTP.  Another way to tell is usually the shape of the brown omnibox on the outside wall - if it's a square shape about 9 inches by 9 inches, and with a power supply running from inside the house that's FTTP.  If it's a rectangular shape about 5 inches wide and 8 inches high, without any obvious power supply, that's an HFC connection, and those upstream power levels are too low.

[theboywonder]

@Andrew-G

It's pretty old, branded Telewest!