Constant disconnections

[iain123456]

We recently had an engineer visit where the engineer concluded everything was fine, but the Hub 4 we had was replaced with a Hub 5. The reason for the visit was due to constant disconnections and loss of service.

Since the Hub 5 was installed it has been much better until the last couple of days where we're losing our connection a lot again. The only way to sort it is turn the hub off, leave for a bit then restart. It then works for a while. I've discovered there is a log in the Hub 5 which provides the table below, the critical items coincide with when the internet is lost, I'm assuming this is the reason and is therefore related.

I've found lots of questions about this, but no real answers, how does this get fixed? The current recorded message says there are no issues in our area, but when I check the service on line, it says there is an issue which is being worked on, check again tomorrow.

ime	Priority	Description
14/12/2023 17:09	warning	DBC-REQ Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 17:09	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 16:58	notice	REGISTRATION COMPLETE - Waiting for Operational status
14/12/2023 16:57	warning	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 16:57	warning	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 16:57	warning	Dynamic Range Window violation
14/12/2023 16:57	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 16:57	notice	TLV-11 - unrecognized OID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 16:57	warning	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 16:57	notice	Honoring MDD; IP provisioning mode = IPv4
14/12/2023 16:57	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 16:57	critical	Cable Modem Reboot because of - HW or Power-On Reset
14/12/2023 14:38	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 14:38	critical	Cable Modem Reboot because of - HW or Power-On Reset
14/12/2023 14:02	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=3.1;
14/12/2023 09:51	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 09:40	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 09:39	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
14/12/2023 09:39	critical	Cable Modem Reboot because of - HW or Power-On Reset
13/12/2023 23:16	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
13/12/2023 23:16	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
13/12/2023 23:16	critical	Cable Modem Reboot because of - HW or Power-On Reset
13/12/2023 07:22	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
13/12/2023 07:22	critical	Cable Modem Reboot because of - HW or Power-On Reset
12/12/2023 07:29	critical	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
12/12/2023 07:28	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
12/12/2023 07:28	critical	Cable Modem Reboot because of - HW or Power-On Reset
12/12/2023 07:26	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
12/12/2023 06:09	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
12/12/2023 05:58	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
12/12/2023 05:57	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
12/12/2023 05:57	critical	Cable Modem Reboot because of - HW or Power-On Reset

[Beth_G]

Hi iain123456

Thanks for posting a screenshot of your graph. 

When the graph appears all red like this, it'll either mean that your Hub has been offline for the entire 24 hour log, or your Hub is blocking CMTS ping request which is what's required in order to allow the site to speak with your Hub and present the data on the graph.

We've checked the SamKnows data on our side for the past week and we aren't able to see any issues at all with your connection.

How've things been since Friday?

[iain123456]

Hi,

We had and engineer come on Friday who replaced the blue box externally on the house and the connection into the house (the install was an old way of doing it, so now it is the new way?). The engineer had detected some issues when he connected his bit of kit, which were then almost gone when he tested it after the replacement box. 

It was all good and we managed 3 days without it going off, then yesterday lunch time it went off and this morning it has just gone off again.

Time Priority Description

02-01-2024 09:49:48	warning	TCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	critical	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	notice	REGISTRATION COMPLETE - Waiting for Operational status
02-01-2024 09:49:38	warning	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:38	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:33	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:30	notice	TLV-11 - unrecognized OID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:27	warning	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:25	notice	Honoring MDD; IP provisioning mode = IPv4
02-01-2024 09:49:15	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:14	critical	Cable Modem Reboot because of - HW or Power-On Reset

.0 Downstream channels

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

1	370000000	8	37	QAM 256	30
2	138000000	9.2	38	QAM 256	1
3	146000000	8.9	38	QAM 256	2
4	154000000	8.8	38	QAM 256	3
5	162000000	8.5	38	QAM 256	4
6	170000000	8.7	38	QAM 256	5
7	178000000	8.7	38	QAM 256	6
8	186000000	9	38	QAM 256	7
9	194000000	9.2	39	QAM 256	8
10	202000000	9.1	38	QAM 256	9
11	210000000	9	38	QAM 256	10
12	218000000	8.8	38	QAM 256	11
13	226000000	8.7	38	QAM 256	12
14	234000000	8.7	38	QAM 256	13
15	242000000	8.8	38	QAM 256	14
16	250000000	8.6	38	QAM 256	15
17	258000000	8.6	38	QAM 256	16
18	266000000	8.4	38	QAM 256	17
19	274000000	8.4	38	QAM 256	18
20	282000000	8.4	38	QAM 256	19
21	290000000	8.6	38	QAM 256	20
22	298000000	8.4	38	QAM 256	21
23	306000000	8.4	38	QAM 256	22
24	314000000	8.2	38	QAM 256	23
25	322000000	8.1	38	QAM 256	24
26	330000000	8	37	QAM 256	25
27	338000000	8	37	QAM 256	26
28	346000000	7.9	37	QAM 256	27
29	354000000	7.9	37	QAM 256	28
30	362000000	8	37	QAM 256	29
31	378000000	8.2	37	QAM 256	31

3.0 Downstream channels

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

1	Locked	37	0	0
2	Locked	38	0	0
3	Locked	38	0	0
4	Locked	38	0	0
5	Locked	38	0	0
6	Locked	38	0	0
7	Locked	38	0	0
8	Locked	38	0	0
9	Locked	39	0	0
10	Locked	38	0	0
11	Locked	38	0	0
12	Locked	38	0	0
13	Locked	38	0	0
14	Locked	38	0	0
15	Locked	38	0	0
16	Locked	38	0	0
17	Locked	38	0	0
18	Locked	38	0	0
19	Locked	38	0	0
20	Locked	38	0	0
21	Locked	38	0	0
22	Locked	38	0	0
23	Locked	38	0	0
24	Locked	38	0	0
25	Locked	38	0	0
26	Locked	37	0	0
27	Locked	37	0	0
28	Locked	37	0	0
29	Locked	37	0	0
30	Locked	37	0	0
31	Locked	37	0	0

3.1 Downstream channels

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

159

94

4K

1840

QAM 4096

1108

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)

159

Locked

38

8.8

4959952

0

3.0 Upstream channels

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

0	60300000	28.3	5120	QAM 64	1
1	53700000	28.3	5120	QAM 64	2
2	46200000	28.3	5120	QAM 64	3
3	39400000	28	5120	QAM 64	4
4	32600000	28.3	5120	QAM 64	5
5	23600000	27.8	5120	QAM 64	6

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

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

General Configuration

Network accessMaximum Number of CPEsBaseline PrivacyDOCSIS ModeConfig file

Allowed

3

Enabled

3.1

A,.iyewrkldJKDHSUBsgvca69834n

Primary Downstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateSFIDMax Traffic RateMax Traffic BurstMin Traffic Rate

8582

575000085 bps

42600bytes

0 bps

22062

128000 bps

4000bytes

0 bps

Primary Upstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling TypeSFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling Type

8581

55000085 bps

42600bytes

0 bps

42600bytes

Best Effort

22061

128000 bps

4000bytes

0 bps

1522bytes

Best Effort

[iain123456]

Hi,

We had and engineer come on Friday who replaced the blue box externally on the house and the connection into the house (the install was an old way of doing it, so now it is the new way?). The engineer had detected some issues when he connected his bit of kit, which were then almost gone when he tested it after the replacement box. 

It was all good and we managed 3 days without it going off, then yesterday lunch time it went off and this morning it has just gone off again.

Time Priority Description

02-01-2024 09:49:48	warning	TCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	critical	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	notice	REGISTRATION COMPLETE - Waiting for Operational status
02-01-2024 09:49:38	warning	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:38	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:33	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:30	notice	TLV-11 - unrecognized OID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:27	warning	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:25	notice	Honoring MDD; IP provisioning mode = IPv4
02-01-2024 09:49:15	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:14	critical	Cable Modem Reboot because of - HW or Power-On Reset

.0 Downstream channels

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

1	370000000	8	37	QAM 256	30
2	138000000	9.2	38	QAM 256	1
3	146000000	8.9	38	QAM 256	2
4	154000000	8.8	38	QAM 256	3
5	162000000	8.5	38	QAM 256	4
6	170000000	8.7	38	QAM 256	5
7	178000000	8.7	38	QAM 256	6
8	186000000	9	38	QAM 256	7
9	194000000	9.2	39	QAM 256	8
10	202000000	9.1	38	QAM 256	9
11	210000000	9	38	QAM 256	10
12	218000000	8.8	38	QAM 256	11
13	226000000	8.7	38	QAM 256	12
14	234000000	8.7	38	QAM 256	13
15	242000000	8.8	38	QAM 256	14
16	250000000	8.6	38	QAM 256	15
17	258000000	8.6	38	QAM 256	16
18	266000000	8.4	38	QAM 256	17
19	274000000	8.4	38	QAM 256	18
20	282000000	8.4	38	QAM 256	19
21	290000000	8.6	38	QAM 256	20
22	298000000	8.4	38	QAM 256	21
23	306000000	8.4	38	QAM 256	22
24	314000000	8.2	38	QAM 256	23
25	322000000	8.1	38	QAM 256	24
26	330000000	8	37	QAM 256	25
27	338000000	8	37	QAM 256	26
28	346000000	7.9	37	QAM 256	27
29	354000000	7.9	37	QAM 256	28
30	362000000	8	37	QAM 256	29
31	378000000	8.2	37	QAM 256	31

3.0 Downstream channels

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

1	Locked	37	0	0
2	Locked	38	0	0
3	Locked	38	0	0
4	Locked	38	0	0
5	Locked	38	0	0
6	Locked	38	0	0
7	Locked	38	0	0
8	Locked	38	0	0
9	Locked	39	0	0
10	Locked	38	0	0
11	Locked	38	0	0
12	Locked	38	0	0
13	Locked	38	0	0
14	Locked	38	0	0
15	Locked	38	0	0
16	Locked	38	0	0
17	Locked	38	0	0
18	Locked	38	0	0
19	Locked	38	0	0
20	Locked	38	0	0
21	Locked	38	0	0
22	Locked	38	0	0
23	Locked	38	0	0
24	Locked	38	0	0
25	Locked	38	0	0
26	Locked	37	0	0
27	Locked	37	0	0
28	Locked	37	0	0
29	Locked	37	0	0
30	Locked	37	0	0
31	Locked	37	0	0

3.1 Downstream channels

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

159

94

4K

1840

QAM 4096

1108

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)

159

Locked

38

8.8

4959952

0

3.0 Upstream channels

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

0	60300000	28.3	5120	QAM 64	1
1	53700000	28.3	5120	QAM 64	2
2	46200000	28.3	5120	QAM 64	3
3	39400000	28	5120	QAM 64	4
4	32600000	28.3	5120	QAM 64	5
5	23600000	27.8	5120	QAM 64	6

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

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

General Configuration

Network accessMaximum Number of CPEsBaseline PrivacyDOCSIS ModeConfig file

Allowed

3

Enabled

3.1

A,.iyewrkldJKDHSUBsgvca69834n

Primary Downstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateSFIDMax Traffic RateMax Traffic BurstMin Traffic Rate

8582

575000085 bps

42600bytes

0 bps

22062

128000 bps

4000bytes

0 bps

Primary Upstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling TypeSFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling Type

8581

55000085 bps

42600bytes

0 bps

42600bytes

Best Effort

22061

128000 bps

4000bytes

0 bps

1522bytes

Best Effort

[iain123456]

And it's gone again, needless to say this is becoming increasingly frustrating and making working from home virtually impossible.

[iain123456]

Hi,

We had and engineer come on Friday who replaced the blue box externally on the house and the connection into the house (the install was an old way of doing it, so now it is the new way?). The engineer had detected some issues when he connected his bit of kit, which were then almost gone when he tested it after the replacement box. 

It was all good and we managed 3 days without it going off, then yesterday lunch time it went off and this morning it has just gone off again.

[iain123456]

Time Priority Description

02-01-2024 09:49:48	warning	TCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	critical	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:48	notice	REGISTRATION COMPLETE - Waiting for Operational status
02-01-2024 09:49:38	warning	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:38	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:33	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:30	notice	TLV-11 - unrecognized OID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:27	warning	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:25	notice	Honoring MDD; IP provisioning mode = IPv4
02-01-2024 09:49:15	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
02-01-2024 09:49:14	critical	Cable Modem Reboot because of - HW or Power-On Reset

.0 Downstream channels

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

1	370000000	8	37	QAM 256	30
2	138000000	9.2	38	QAM 256	1
3	146000000	8.9	38	QAM 256	2
4	154000000	8.8	38	QAM 256	3
5	162000000	8.5	38	QAM 256	4
6	170000000	8.7	38	QAM 256	5
7	178000000	8.7	38	QAM 256	6
8	186000000	9	38	QAM 256	7
9	194000000	9.2	39	QAM 256	8
10	202000000	9.1	38	QAM 256	9
11	210000000	9	38	QAM 256	10
12	218000000	8.8	38	QAM 256	11
13	226000000	8.7	38	QAM 256	12
14	234000000	8.7	38	QAM 256	13
15	242000000	8.8	38	QAM 256	14
16	250000000	8.6	38	QAM 256	15
17	258000000	8.6	38	QAM 256	16
18	266000000	8.4	38	QAM 256	17
19	274000000	8.4	38	QAM 256	18
20	282000000	8.4	38	QAM 256	19
21	290000000	8.6	38	QAM 256	20
22	298000000	8.4	38	QAM 256	21
23	306000000	8.4	38	QAM 256	22
24	314000000	8.2	38	QAM 256	23
25	322000000	8.1	38	QAM 256	24
26	330000000	8	37	QAM 256	25
27	338000000	8	37	QAM 256	26
28	346000000	7.9	37	QAM 256	27
29	354000000	7.9	37	QAM 256	28
30	362000000	8	37	QAM 256	29
31	378000000	8.2	37	QAM 256	31

3.0 Downstream channels

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

1	Locked	37	0	0
2	Locked	38	0	0
3	Locked	38	0	0
4	Locked	38	0	0
5	Locked	38	0	0
6	Locked	38	0	0
7	Locked	38	0	0
8	Locked	38	0	0
9	Locked	39	0	0
10	Locked	38	0	0
11	Locked	38	0	0
12	Locked	38	0	0
13	Locked	38	0	0
14	Locked	38	0	0
15	Locked	38	0	0
16	Locked	38	0	0
17	Locked	38	0	0
18	Locked	38	0	0
19	Locked	38	0	0
20	Locked	38	0	0
21	Locked	38	0	0
22	Locked	38	0	0
23	Locked	38	0	0
24	Locked	38	0	0
25	Locked	38	0	0
26	Locked	37	0	0
27	Locked	37	0	0
28	Locked	37	0	0
29	Locked	37	0	0
30	Locked	37	0	0
31	Locked	37	0	0

3.1 Downstream channels

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

159

94

4K

1840

QAM 4096

1108

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)

159

Locked

38

8.8

4959952

0

3.0 Upstream channels

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

0	60300000	28.3	5120	QAM 64	1
1	53700000	28.3	5120	QAM 64	2
2	46200000	28.3	5120	QAM 64	3
3	39400000	28	5120	QAM 64	4
4	32600000	28.3	5120	QAM 64	5
5	23600000	27.8	5120	QAM 64	6

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

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

General Configuration

Network accessMaximum Number of CPEsBaseline PrivacyDOCSIS ModeConfig file

Allowed

3

Enabled

3.1

A,.iyewrkldJKDHSUBsgvca69834n

Primary Downstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateSFIDMax Traffic RateMax Traffic BurstMin Traffic Rate

8582

575000085 bps

42600bytes

0 bps

22062

128000 bps

4000bytes

0 bps

Primary Upstream Service Flow

SFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling TypeSFIDMax Traffic RateMax Traffic BurstMin Traffic RateMax Concatenated BurstScheduling Type

8581

55000085 bps

42600bytes

0 bps

42600bytes

Best Effort

22061

128000 bps

4000bytes

0 bps

1522bytes

Best Effort

[Roger_Gooner]

Did he say anything about the upstream power levels? They might be a bit low.

[John_GS]

Hi @iain123456 

Thanks for coming back to the thread.

You do need a tech as the upstream channels are low plus the downstream ones are getting towards the high side.

I'll send you a PM now to book this in.

[iain123456]

Hi, Engineer came yesterday and installed an attenuator which seemed to increase the upstream and reduce the downstream. However, this evening, we've lost connection again...

Time Priority Description

07-01-2024 18:18:29	notice	REGISTRATION COMPLETE - Waiting for Operational status
07-01-2024 18:18:29	critical	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:29	warning	TCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:20	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:20	warning	Dynamic Range Window violation
07-01-2024 18:18:20	warning	RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:20	warning	Dynamic Range Window violation
07-01-2024 18:18:19	warning	Dynamic Range Window violation
07-01-2024 18:18:19	warning	REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:19	warning	RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:14	notice	DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:11	notice	TLV-11 - unrecognized OID;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:08	warning	DHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:18:06	notice	Honoring MDD; IP provisioning mode = IPv4
07-01-2024 18:17:56	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 18:17:55	critical	Cable Modem Reboot because of - HW or Power-On Reset
07-01-2024 17:59:50	critical	Cable Modem Reboot because of - HW or Power-On Reset
07-01-2024 17:59:50	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
07-01-2024 09:22:49	critical	Cable Modem Reboot because of - HW or Power-On Reset
07-01-2024 09:22:49	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
06-01-2024 12:04:42	critical	SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
06-01-2024 12:03:50	critical	No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;

[iain123456]

3.0 Upstream channels

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

0	60300000	37.8	5120	QAM 64	1
1	53700000	38.3	5120	QAM 64	2
2	46200000	38.3	5120	QAM 64	3
3	39400000	37.5	5120	QAM 64	4
4	32600000	37.8	5120	QAM 64	5
5	23600000	37.8	5120	QAM 64	6

3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

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