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upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

My upstream modulation is still dropping and seems to recover at about 11 pm and then drops again and the cycle continues 2020-11-20.png 

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Alessandro Volta
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Re: upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

Can you set up a Broadband Quality Monitor (BQM) at thinkbroadband.com - this will give you an insight into what is happening with the signal at the other side of the Hub, it will take a few hours to get any kind of trend showing although you should post the link straight away.

Post a 'Live Link' to your BQM on here.

Instructions for posting BQM Link

Under your BQM graph are two links in red.

Click the lower link (Share Live Graph) then click generate.

Copy the text in the Direct Link box, beware, there may be more text than you can see.

On here click the Link icon (2 links chain to the left of the camera icon)

In the URL box paste the link you copied and in the ‘text to display’ box write My BQM then click OK - you can post the link straight away.

***********************************************************************************************************************************

Mike Robinson
Semi-Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.

My Broadband Ping - Mike Robbo
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Alessandro Volta
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Re: upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

Can you please

Type 192.168.0.1 (192.168.100.1 in Modem mode) into your browser URL bar and press enter. 

Hub 2 & 3 When the page appears DO NOT LOG IN but click ‘Check Router Status’.

Hub 4 When the page appears LOG IN then click ‘Check Router Status’.

Copy and paste the contents of the Downstream, Upstream, Configuration and Network Log tabs onto here, if you get a yellow / straw box warning click the Post button again. Use one post for each tab if you wish.

Please do not use screen grabs.

A Guru will be along soon to decipher the info.

***********************************************************************************************************************************

Mike Robinson
Semi-Retired Aircraft Engineer & Computer Based Training and Learning Designer for many of the world's Military Arms.

My Broadband Ping - Mike Robbo
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Re: upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

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Re: upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

Channel Overview Downstream Upstream

Cable Modem Status
Online
DOCSIS 3.0
Primary downstream channel
Locked
SC-QAM
DOCSIS 3.0 channels
32
4
DOCSIS 3.1 channels
0
0
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Re: upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

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

294027500003.20000140.366287QAM25629
71867500004.40000238.983261QAM2567
81947500004.40000238.983261QAM2568
92027500004.30000338.983261QAM2569
102107500004.00000038.983261QAM25610
112187500004.09999838.983261QAM25611
122267500003.79999938.605377QAM25612
132347500003.90000238.983261QAM25613
142427500003.59999838.983261QAM25614
152507500003.79999938.983261QAM25615
162587500003.70000138.983261QAM25616
172667500003.70000138.983261QAM25617
182747500004.00000038.983261QAM25618
192827500004.09999840.366287QAM25619
202907500004.09999838.983261QAM25620
212987500003.70000138.983261QAM25621
223067500003.70000138.983261QAM25622
233147500003.59999840.366287QAM25623
243227500003.70000138.983261QAM25624
253307500003.59999838.983261QAM25625
263787500003.50000040.366287QAM25626
273867500003.20000138.605377QAM25627
283947500003.20000140.366287QAM25628
304107500003.00000038.983261QAM25630
314187500003.09999838.983261QAM25631
324267500003.59999840.946209QAM25632
334347500003.59999840.366287QAM25633
344427500003.50000040.366287QAM25634
354507500003.70000140.366287QAM25635
364587500004.19999740.946209QAM25636
374667500004.19999740.946209QAM25637
384747500004.30000340.366287QAM25638



3.0 Downstream channels

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

29Locked13994747600
7Locked13282537600
8Locked14927278100
9Locked10415859200
10Locked10047945600
11Locked9050366500
12Locked13931833300
13Locked9330615700
14Locked1312815300
15Locked1260238900
16Locked6901705900
17Locked1940101900
18Locked1850437100
19Locked1755537700
20Locked1617927600
21Locked1696179900
22Locked1938670600
23Locked1653344300
24Locked1464077000
25Locked1849859000
26Locked1981866000
27Locked1745303400
28Locked1875658700
30Locked1843947800
31Locked1889019800
32Locked1533940500
33Locked1758980700
34Locked1840879900
35Locked1566693800
36Locked1576028400
37Locked1741983700
38Locked6885980800
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Re: upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

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

14620000043.2500005120 KSym/sec32QAM7
23940000043.2500005120 KSym/sec8QAM8
35370000043.5000005120 KSym/sec64QAM6
46030000043.7500005120 KSym/sec64QAM5



3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0000
2US_TYPE_STDMA0000
3US_TYPE_STDMA0000
4US_TYPE_STDMA0000
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Re: upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

General Configuration

Network access
true
Maximum Number of CPEs
1
Baseline Privacy
true
DOCSIS Mode
3.0
Config file
cmreg-vmdg640-bbt062-b.cm



Primary Downstream Service Flow

SFID
729184
Max Traffic Rate
402500089
Max Traffic Burst
42600
Min Traffic Rate
0



Primary Upstream Service Flow

SFID
729183
Max Traffic Rate
38500089
Max Traffic Burst
42600
Min Traffic Rate
0
Max Concatenated Burst
42600
Scheduling Type
bestEffort
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Message 9 of 20
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.

.

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Re: upstream modulation still dropping to 8qam and 32qam on 2 of the upstream channels

My Broadband Ping - MyHub4

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