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ClanMoffat
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Why does 1G Hub4 provide badly intermittent broadband (Wifi and Ethernet cable) !

For some time we experienced repeated dropouts with HUB3 and thought that moving to HUB4 and 1G broadband might help resolve the issues...

The issues remain...
For example:
https://www.thinkbroadband.com/broadband/monitoring/quality/share/36debcb4047c4510c626c18e715153394a...

While watching a single movie on Saturday evening, the broadband cut out almost once every 30 minutes!!!

The drop outs occur for both WiFi and Ethernet connections!
After several minutes the router appears to reboot and connectivity is regained.
I have split devices into using either 2.4 or 5GHz.


Previpously when working OK, https://samknows.com/realspeed/ reported Speed to Hub of over 1000, and Wifi to mobile of around 350..

Oddly connectivity from a PS4 to HUB4 seems to be slower that from the PS4 to HUB3 router,,,

Urgent assistance is required - our family household has 2 student teachers and one other university student, with all needing consistent broadband to complete our studies...

What is going on with the network?
The fact that the dropouts occur with both Hub3 and Hub4 suggest it is not a local issue...
The fast connectivity to the router (when working) suggest that it is an intermittent issue outwith our home...

I'm happy to provide other information or logs as required, just let me know what you need...

The drop outs identified from monitoring suggest a significant issue.

 

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ClanMoffat
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Re: Why does 1G Hub4 provide badly intermittent broadband (Wifi and Ethernet cable) !

Cable Modem Status 

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
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Re: Why does 1G Hub4 provide badly intermittent broadband (Wifi and Ethernet cable) !

Downstream

 

3.0 Downstream channels

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

21470000003.539QAM2562
11390000003.639QAM2561
31550000003.140.4QAM2563
41630000002.638.6QAM2564
51710000002.640.4QAM2565
61790000002.239QAM2566
71870000001.940.4QAM2567
81950000002.440.4QAM2568
92030000002.540.4QAM2569
102110000002.440.9QAM25610
112190000002.440.4QAM25611
122270000002.140.4QAM25612
132350000002.340.4QAM25613
142430000001.540.9QAM25614
152510000001.340.4QAM25615
162590000001.440.9QAM25616
172670000001.240.4QAM25617
182750000001.240.4QAM25618
192830000001.140.4QAM25619
202910000000.540.4QAM25620
212990000000.340.4QAM25621
223070000000.440.4QAM25622
23315000000-0.539QAM25623
243230000000.940.4QAM25624
253310000000.439QAM25625
26371000000-0.540.4QAM25626
27379000000-0.540.4QAM25627
28387000000-0.540.9QAM25628
29395000000-0.640.4QAM25629
30403000000-1.939QAM25630
31411000000-1.440.4QAM25631



3.0 Downstream channels

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

2Locked38.9832611229635
1Locked38.98326113542160
3Locked40.36628726361762
4Locked38.60537717073013
5Locked40.366287163331
6Locked38.98326118241466
7Locked40.366287231119
8Locked40.3662872060
9Locked40.3662872151
10Locked40.9462092240
11Locked40.3662872971
12Locked40.3662872742
13Locked40.3662872073
14Locked40.9462091751
15Locked40.3662872001
16Locked40.9462091761
17Locked40.3662872100
18Locked40.3662871901
19Locked40.3662871960
20Locked40.3662871470
21Locked40.3662871990
22Locked40.3662871560
23Locked38.9832611480
24Locked40.3662871600
25Locked38.9832611980
26Locked40.3662871790
27Locked40.3662871050
28Locked40.9462091020
29Locked40.3662872090
30Locked38.9832611390
31Locked40.3662871020



3.1 Downstream channelsChannel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
33804K1560QAM4096424


3.1 Downstream channelsChannel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
33Locked42-0.9174461542449

 

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Re: Why does 1G Hub4 provide badly intermittent broadband (Wifi and Ethernet cable) !

UPSTREAM

3.0 Upstream channels

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

160300000475120 KSym/sec64QAM6
24620000045.85120 KSym/sec64QAM8
35370000046.85120 KSym/sec64QAM7
439400000465120 KSym/sec64QAM9



3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0030
2US_TYPE_STDMA002420
3US_TYPE_STDMA002430
4US_TYPE_STDMA002320

 

 

 

 

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Re: Why does 1G Hub4 provide badly intermittent broadband (Wifi and Ethernet cable) !

CONFIGURATION

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
12040
Max Traffic Rate
1200000450
Max Traffic Burst
42600
Min Traffic Rate
0



Primary Upstream Service Flow

SFID
12039
Max Traffic Rate
55000270
Max Traffic Burst
42600
Min Traffic Rate
0
Max Concatenated Burst
42600
Scheduling Type
bestEffort

 

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