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Regular bursts of packet loss 0.5-1 hour intervals

yaheed
Tuning in

I've been receiving increasingly worse performance over time with my Gig1 Fibre connection with the Hub 4. Generally speaking watching YouTube or any streaming service capable of buffering hasn't caused any issues, but gaming is very difficult because of the frequency of packet loss and huge spikes in latency for 5-10 seconds every 30 minutes to an hour causing regular disconnections.

  • Given how regular the packet loss was I had assumed a device on the network was causing the issue, so I tried isolating my devices to only my PC, factory resetting, regular power cycles on the modem, and re-seating all cables to no avail.
  • BQM definitely shows a pattern right up to ~6pm tonight. Still regular but packet loss appears to be lower (so far).
  • Hub 4 is in Modem Mode with Amplifi Alien Router and MeshPoint.
  • VM status page does say that there appears to be something wrong with my connection, to check back 23 hours later, and then I've since booked for an engineer to come by on the 12/09.

09/09

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10/09

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1 ACCEPTED SOLUTION

Accepted Solutions

Client62
Hero

Clues of a severe noise issue from connection stats:

1. There are over eight hundred million errors on the 3.1 Downstream channel.

2. The 3.1 Upstream channel is degraded to QAM 32 modulation mode.

You may get progress reports on this via 0800 561 0061 - it is an automated number for faults in your street.

See where this Helpful Answer was posted

8 REPLIES 8

yaheed
Tuning in

Router status

ItemStatusComments
Cable Modem Status
Online
DOCSIS 3.1
Primary downstream channel
Locked
SC-QAM
Channel Overview
Downstream
Upstream
DOCSIS 3.0 channels
31
5
DOCSIS 3.1 channels
1
1

3.0 Downstream channels

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

41627500002.40000243.376591QAM2564
11387500003.29999943.376591QAM2561
21467500003.59999843.376591QAM2562
31547500003.20000143.376591QAM2563
51707500002.29999943.376591QAM2565
61787500000.90000240.366287QAM2566
71867500000.59999840.946209QAM2567
81947500002.40000240.946209QAM2568
92027500002.70000143.376591QAM2569
102107500002.59999843.376591QAM25610
112187500002.20000143.376591QAM25611
122267500002.09999840.946209QAM25612
132347500002.29999940.946209QAM25613
142427500002.50000040.946209QAM25614
152507500002.50000040.946209QAM25615
162587500003.20000143.376591QAM25616
172667500003.20000143.376591QAM25617
182747500003.09999840.366287QAM25618
192827500003.00000040.946209QAM25619
202907500002.70000140.946209QAM25620
212987500002.70000143.376591QAM25621
223067500002.20000143.376591QAM25622
233147500001.70000140.946209QAM25623
243227500001.90000240.946209QAM25624
253307500002.00000040.366287QAM25625
263387500002.70000140.946209QAM25626
273467500003.09999843.376591QAM25627
283547500003.00000043.376591QAM25628
293627500003.09999840.946209QAM25629
303707500003.20000140.946209QAM25630
313787500002.90000240.946209QAM25631

3.0 Downstream channels

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

4Locked43.37659100
1Locked43.37659100
2Locked43.37659100
3Locked43.37659100
5Locked43.37659100
6Locked40.36628700
7Locked40.94620900
8Locked40.94620900
9Locked43.37659100
10Locked43.37659100
11Locked43.37659100
12Locked40.94620900
13Locked40.94620900
14Locked40.94620900
15Locked40.94620900
16Locked43.37659100
17Locked43.37659100
18Locked40.36628700
19Locked40.94620900
20Locked40.94620900
21Locked43.37659100
22Locked43.37659100
23Locked40.94620900
24Locked40.94620900
25Locked40.36628700
26Locked40.94620900
27Locked43.37659100
28Locked43.37659100
29Locked40.94620900
30Locked40.94620900
31Locked40.94620900

3.1 Downstream channels

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

1591304K2511QAM4096417



3.1 Downstream channels

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

159Locked442.08133511710

Upstream

3.0 Upstream channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
13010000047.5205995120 KSym/sec64QAM12
22360000046.5205995120 KSym/sec64QAM13
33660000047.5205995120 KSym/sec64QAM11
44310000047.5205995120 KSym/sec64QAM10
54960000048.0205995120 KSym/sec64QAM9


3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1US_TYPE_ATDMA0000
2US_TYPE_ATDMA0000
3US_TYPE_ATDMA0000
4US_TYPE_ATDMA0000
5US_TYPE_ATDMA0000


3.1 Upstream channels

Channel Channel Width (MHz) Power (dBmV) FFT Type Modulation
1410.040.22KQAM32


3.1 Upstream channels

Channel Channel Type Number of Active Subcarriers First Active Subcarrier (Hz) T3 Timeouts T4 Timeouts
14OFDMA20053.400

yaheed
Tuning in

General Configuration

Network access
true
Maximum Number of CPEs
1
Baseline Privacy
true
DOCSIS Mode
3.1
Config file
ca69834ncxv9873254k;fg87d



Primary Downstream Service Flow

SFID
23558
Max Traffic Rate
1200000450
Max Traffic Burst
42600
Min Traffic Rate
0



Primary Upstream Service Flow

SFID
23557
Max Traffic Rate
110000274
Max Traffic Burst
42600
Min Traffic Rate
0
Max Concatenated Burst
42600
Scheduling Type
bestEffort

yaheed
Tuning in

Network Log

Time Priority Description

Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 12; New Profile: .;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
3No Ranging Response received - T3 time-out;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: ; New Profile: 11.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 12; New Profile: .;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: ; New Profile: 11.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
3No Ranging Response received - T3 time-out;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 12; New Profile: .;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: ; New Profile: 11.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 12; New Profile: .;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: ; New Profile: 11.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
3No Ranging Response received - T3 time-out;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 12; New Profile: .;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: ; New Profile: 11.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 12; New Profile: .;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: ; New Profile: 11.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 12; New Profile: .;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 12; New Profile: .;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: 11; New Profile: 12.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;
Sun Sep
10
5DBC-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;
Sun Sep
10
6US profile assignment change. US Chan ID: 14; Previous Profile: ; New Profile: 11.;CM-MAC=*;CMTS-MAC=*;CM-QOS=1.1;CM-VER=3.1;

Client62
Hero

Clues of a severe noise issue from connection stats:

1. There are over eight hundred million errors on the 3.1 Downstream channel.

2. The 3.1 Upstream channel is degraded to QAM 32 modulation mode.

You may get progress reports on this via 0800 561 0061 - it is an automated number for faults in your street.

Thanks, Client62. Called up the number as you suggested and no issue/faults in the area as far as the automated responses go. Helpful information nonetheless!

yaheed
Tuning in

Looks like there's an issue with the BQM image for the 10/09 - re-posting for brevity.

d60841885671596945506251623595cd8b330615-10-09-2023.png

 

Hi @yaheed 

Thanks for posting and welcome to the community.

Sorry to hear of the broadband issues. 

I can see you've had a tech visit since posting. 

I hope everything has been resolved, please do pop back if not and we can assist further.

Best wishes.

John_GS
Forum Team


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