Virgin Media Community

[BasicJ]

Ok things checked/actioned: Rebooted modem (latest V4), checked coax, checked Cat6 cables, WiFi is off on the modem.

Running speed tests directly at the modem with my laptop (less than 18 months old running the latest version of Win 10 and using the admin account) with a WIRED connection, today I am getting ~60-90Mb down out of 1000Mb.

Have had the Gig service for about 12 months now and I never get more than ~500Mb.

Have phoned on multiple occasions to be told there is nothing wrong with the modem or last mile.

Anyone any suggestions other than phoning in.

Am gonna be phoning in to claim about 12 months worth of my service costs back.

At a loss & frustrated

P.S. I am technically adept having managed the infrastructure for a major global company for many years

[jbrennand]

Boot it into safe+networking mode and put the Hub in modem mode. That will give you the maximum speed possible.

As you are tech savvy I wont mention ethernet cable failures and bad NIC cards defaulting to 10/100 or Dell's killer wifi cards, etc 🙂

[BasicJ]

Here is the info out of my modem

  

[BasicJ]

Yeah have checked everything you suggest, hub is always in modem mode and I have numerous cables that test fine and I don't use the wifi in modem, wired is the way forward.

service is still at the mentioned levels 

[BrianY]

Upstream power levels, can you check please.
Looks like above 52dBmV, try copy and paste next time.

[BasicJ]

Upstream

3.0 Upstream channels

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

1	39400000	51	5120 KSym/sec	64QAM	4
2	46200000	50.8	5120 KSym/sec	64QAM	3
3	53700000	52.3	5120 KSym/sec	64QAM	2
4	60300000	53.3	5120 KSym/sec	64QAM	1

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

[BasicJ]

Downstream

3.0 Downstream channels

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

25	331000000	1.6	39	QAM256	25
8	195000000	-1.3	37.6	QAM256	8
9	203000000	-0.9	37.6	QAM256	9
10	211000000	-1.3	37.6	QAM256	10
11	219000000	-1.6	37.4	QAM256	11
12	227000000	-1.8	37.4	QAM256	12
13	235000000	-1.8	37.4	QAM256	13
14	243000000	-1.7	37.4	QAM256	14
15	251000000	-1.7	37.4	QAM256	15
16	259000000	-1.1	37.6	QAM256	16
17	267000000	-0.7	37.6	QAM256	17
18	275000000	-0.1	38.6	QAM256	18
19	283000000	-0.1	37.6	QAM256	19
20	291000000	0.1	38.6	QAM256	20
21	299000000	0	37.6	QAM256	21
22	307000000	0.5	38.6	QAM256	22
23	315000000	0.8	38.6	QAM256	23
24	323000000	1.4	38.6	QAM256	24
26	339000000	1.5	38.6	QAM256	26
27	347000000	1.1	39	QAM256	27
28	355000000	0.8	39	QAM256	28
29	363000000	0.6	39	QAM256	29
30	371000000	0.4	38.6	QAM256	30
31	379000000	0.2	38.6	QAM256	31
32	387000000	0.2	39	QAM256	32
33	395000000	0.3	38.6	QAM256	33
34	403000000	0	38.6	QAM256	34
35	411000000	0	39	QAM256	35
36	419000000	-0.6	38.6	QAM256	36
37	427000000	-0.7	38.6	QAM256	37
38	435000000	-0.8	39	QAM256	38

3.0 Downstream channels

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

25	Locked	38.983261	0	0
8	Locked	37.636276	0	0
9	Locked	37.636276	0	0
10	Locked	37.636276	0	0
11	Locked	37.355988	0	0
12	Locked	37.355988	0	0
13	Locked	37.355988	0	0
14	Locked	37.355988	0	0
15	Locked	37.355988	0	0
16	Locked	37.636276	0	0
17	Locked	37.636276	0	0
18	Locked	38.605377	0	0
19	Locked	37.636276	0	0
20	Locked	38.605377	0	0
21	Locked	37.636276	0	0
22	Locked	38.605377	0	0
23	Locked	38.605377	0	0
24	Locked	38.605377	0	0
26	Locked	38.605377	0	0
27	Locked	38.983261	0	0
28	Locked	38.983261	0	0
29	Locked	38.983261	0	0
30	Locked	38.605377	0	0
31	Locked	38.605377	0	0
32	Locked	38.983261	0	0
33	Locked	38.605377	0	0
34	Locked	38.605377	0	0
35	Locked	38.983261	0	0
36	Locked	38.605377	0	0
37	Locked	38.605377	0	0
38	Locked	38.983261	0	0

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

159

96

4K

1880

QAM4096

759

3.1 Downstream channelsChannel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

159

Locked

40

-2.5

88630592

0

[BasicJ]

Configuration

General Configuration

Network access	true
Maximum Number of CPEs	1
Baseline Privacy	true
DOCSIS Mode	3.1
Config file	87dsfd;kfoA,.iyewrkldJKDH

Primary Downstream Service Flow

SFID	714
Max Traffic Rate	1200000450
Max Traffic Burst	42600
Min Traffic Rate	0

Primary Upstream Service Flow

SFID	713
Max Traffic Rate	55000270
Max Traffic Burst	42600
Min Traffic Rate	0
Max Concatenated Burst	16320
Scheduling Type	bestEffort

[BasicJ]

Network Log

S=1.1;CM-VER=3.1;Mon 09/08/2021 12:19:563No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Tue 10/08/2021 13:36:466CM-STATUS message sent. Event Type Code: 5; Chan ID: 21; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Wed 11/08/2021 20:08:533No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 12/08/2021 04:21:106CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 12/08/2021 04:34:134DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 12/08/2021 04:34:136DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 12/08/2021 15:07:206CM-STATUS message sent. Event Type Code: 5; Chan ID: 21; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 12/08/2021 15:18:113SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 12/08/2021 15:18:286CM-STATUS message sent. Event Type Code: 5; Chan ID: 22; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Sun 15/08/2021 16:34:134DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Sun 15/08/2021 16:34:136DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 19/08/2021 04:21:326CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 19/08/2021 04:34:134DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 19/08/2021 04:34:136DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Fri 20/08/2021 14:12:266CM-STATUS message sent. Event Type Code: 5; Chan ID: 22; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Sat 21/08/2021 07:33:583No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Sat 21/08/2021 19:52:126CM-STATUS message sent. Event Type Code: 5; Chan ID: 22; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Sun 22/08/2021 16:34:134DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Sun 22/08/2021 16:34:136DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Wed 25/08/2021 15:33:556CM-STATUS message sent. Event Type Code: 5; Chan ID: 22; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 26/08/2021 04:34:124DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 26/08/2021 04:34:136DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 26/08/2021 14:47:033No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Fri 27/08/2021 13:56:436CM-STATUS message sent. Event Type Code: 5; Chan ID: 22; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Sun 29/08/2021 16:34:134DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Sun 29/08/2021 16:34:136DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Tue 31/08/2021 14:40:016CM-STATUS message sent. Event Type Code: 24; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Tue 31/08/2021 15:54:023No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Tue 31/08/2021 17:15:146CM-STATUS message sent. Event Type Code: 23; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 02/09/2021 04:34:134DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Thu 02/09/2021 04:34:136DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;Fri 03/09/2021 16:44:415MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;

[risc19]

Upstream power is out of spec.

However it is the right modulation somehow.