Virgin Media Community

[AA2121]

Upgraded to 1GB during November - at that time the internet was running great. Now I am getting 500Mb speeds on Ookla speed test, my network continues to drop throughout the day while I am working and the most basic internet surfing becomes quite tedious. 

It is really frustrating. I have turned it on and off, have done this nearly every day to get speeds back up to normality. I am not running off wifi, everything is wired ethernet CAT6. 

Any help? 

[AA2121]

<a title="Broadband Ping" href="https://www.thinkbroadband.com/broadband/monitoring/quality/share/2453f278a3209ac527948a9473a61c9eb7ff0d79">My Broadband Ping</a>

[gary_dexter]

Post the network, upstream and downstream logs from the hubs admin pages 

[AA2121]

3.0 Downstream channelsChannel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

25	331000000	5.2	38.6	QAM256	25
1	139000000	2.5	37.4	QAM256	1
2	147000000	2.3	37.6	QAM256	2
3	155000000	2.3	37.6	QAM256	3
4	163000000	2.4	37.4	QAM256	4
5	171000000	2.7	37.4	QAM256	5
6	179000000	2.9	37.4	QAM256	6
7	187000000	2.9	37.4	QAM256	7
8	195000000	2.9	37.4	QAM256	8
9	203000000	2.9	37.4	QAM256	9
10	211000000	3	37.4	QAM256	10
11	219000000	3.1	36.6	QAM256	11
12	227000000	3.1	36.6	QAM256	12
13	235000000	3.1	36.6	QAM256	13
14	243000000	3.1	36.6	QAM256	14
15	251000000	3.2	36.6	QAM256	15
16	259000000	3.5	36.6	QAM256	16
17	267000000	3.7	36.6	QAM256	17
18	275000000	4	37.4	QAM256	18
19	283000000	3.6	37.4	QAM256	19
20	291000000	3.3	37.6	QAM256	20
21	299000000	2.7	37.6	QAM256	21
22	307000000	3	37.6	QAM256	22
23	315000000	3.7	38.6	QAM256	23
24	323000000	4.8	38.6	QAM256	24
26	339000000	5.7	39	QAM256	26
27	347000000	6	38.6	QAM256	27
28	355000000	6.4	39	QAM256	28
29	363000000	6.5	38.6	QAM256	29
30	371000000	6.5	39	QAM256	30
31	379000000	6.5	38.6	QAM256	31

3.0 Downstream channelsChannel Lock Status RxMER (dB) Pre RS Errors Post RS Errors

25	Locked	38.605377	0	0
1	Locked	37.355988	0	0
2	Locked	37.636276	0	0
3	Locked	37.636276	0	0
4	Locked	37.355988	0	0
5	Locked	37.355988	0	0
6	Locked	37.355988	0	0
7	Locked	37.355988	0	0
8	Locked	37.355988	0	0
9	Locked	37.355988	0	0
10	Locked	37.355988	0	0
11	Locked	36.609653	0	0
12	Locked	36.609653	0	0
13	Locked	36.609653	0	0
14	Locked	36.609653	0	0
15	Locked	36.609653	0	0
16	Locked	36.609653	0	0
17	Locked	36.609653	0	0
18	Locked	37.355988	0	0
19	Locked	37.355988	0	0
20	Locked	37.636276	0	0
21	Locked	37.636276	0	0
22	Locked	37.636276	0	0
23	Locked	38.605377	0	0
24	Locked	38.605377	0	0
26	Locked	38.983261	0	0
27	Locked	38.605377	0	0
28	Locked	38.983261	0	0
29	Locked	38.605377	0	0
30	Locked	38.983261	0	0
31	Locked	38.605377	0	0

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

33

88

4K

1720

QAM4096

392

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

33

Locked

41

6.7

45347202

0

[AA2121]

3.0 Upstream channels

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

1	60300000	57.8	5120 KSym/sec	64QAM	1
2	46200000	58.8	5120 KSym/sec	32QAM	3
3	53700000	58.8	5120 KSym/sec	64QAM	2
4	39400000	58.5	5120 KSym/sec	64QAM	4

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

[AA2121]

Network Log

Time Priority Description

Sun 04/01/1970 13:25:02	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 04/01/1970 13:25:16	4	ToD request sent- No Response received;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 04/01/1970 19:02:03	3	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 04/01/1970 19:02:25	6	CM-STATUS message sent. Event Type Code: 5; Chan ID: 2; 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 04/01/1970 19:02:33	4	ToD request sent- No Response received;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 03/12/2020 17:02:08	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 13/12/2020 00:04:15	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 14/12/2020 05:02:08	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 15/12/2020 02:45:33	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 17/12/2020 17:02:08	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 22/12/2020 22:23:20	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 23/12/2020 11:38:05	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 25/12/2020 20:20:01	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 27/12/2020 21:19:36	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 28/12/2020 19:11:08	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 28/12/2020 23:53:16	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 01/01/2021 07:11:08	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 04/01/2021 05:22:44	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 04/01/2021 19:11:09	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 05/01/2021 05:31:08	6	CM-STATUS message sent. Event Type Code: 5; Chan ID: 2; 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 06/01/2021 05:39:10	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 08/01/2021 07:11:09	4	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 01/01/1970 00:01:16	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Fri 08/01/2021 16:19:10	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:36:05	5	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:36:05	6	CM-STATUS message sent. Event Type Code: 4; Chan ID: 27; 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;
Mon 11/01/2021 11:36:15	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:36:18	6	CM-STATUS message sent. Event Type Code: 5; Chan ID: 14; 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;
Mon 11/01/2021 11:36:19	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:36:47	6	CM-STATUS message sent. Event Type Code: 23; Chan ID: 33; 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;
Mon 11/01/2021 11:36:47	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:36:52	6	CM-STATUS message sent. Event Type Code: 5; Chan ID: 14; 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;
Mon 11/01/2021 11:36:54	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:36:59	3	Ranging Request Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:36:59	3	Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:37:00	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:37:10	3	Ranging Request Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:37:10	3	Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:37:10	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:40:59	3	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=3.1;
Mon 11/01/2021 11:41:43	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 11/01/2021 11:42:09	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Tue 12/01/2021 04:56:51	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 13/01/2021 00:27:53	6	SW Download INIT - Via NMS
Wed 13/01/2021 00:29:12	6	SW download Successful - Via NMS
Thu 01/01/1970 00:01:18	3	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 13/01/2021 00:31:45	5	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 13/01/2021 00:31:55	5	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;

[gary_dexter]

---

@AA2121 wrote:

3.0 Upstream channels

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

1	60300000	57.8	5120 KSym/sec	64QAM	1
2	46200000	58.8	5120 KSym/sec	32QAM	3
3	53700000	58.8	5120 KSym/sec	64QAM	2
4	39400000	58.5	5120 KSym/sec	64QAM	4

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

---

Your upstream levels are too high and one of them is out of sync. You can try rebooting the hub and checking the coax cables are seated correctly and securely, but it’s more than likely you’ll need an engineer to resolve.