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uptream power level not within acceptable range for docsis 3.1 modem

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Frequent Visitor

uptream power level not within acceptable range for docsis 3.1 modem

 

Upstream QAM
Channel Bonding Value
1
2
3
4
5
ACTIVE
ACTIVE
ACTIVE
ACTIVE
ACTIVE
30300000
41200000
36700000
23700000
17300000
5120
1280
5120
5120
5120
42.520599
42.000000
41.770599
43.020599
43.770599
32QAM
64QAM
64QAM
64QAM
64QAM
US_TYPE_STDMA
US_TYPE_STDMA
US_TYPE_STDMA
US_TYPE_STDMA
US_TYPE_STDMA

 

it should be between +55 dBmV to 45 dBmV

 

please help.

 

Thanks

 

Highlighted
Expert

Re: uptream power level not within acceptable range for docsis 3.1 modem

It's fine. Are you actually having any connectivity problems  ?



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I am a Customer Expert volunteering my time to help other customers here in the Forums.
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Frequent Visitor

Re: uptream power level not within acceptable range for docsis 3.1 modem

yes I'm

Highlighted
Expert

Re: uptream power level not within acceptable range for docsis 3.1 modem

Please describe them.

 

What do the downstream power levels and the SNR's look like ?



I am not a Comcast Employee.
I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
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Highlighted
Frequent Visitor

Re: uptream power level not within acceptable range for docsis 3.1 modem

Downstream well within operating range, it is just upstream power level not to meeting the requirement

 

this what I own

https://www.surfboard.com/products/wi-fi-cable-modems/sbg8300/

Highlighted
Expert

Re: uptream power level not within acceptable range for docsis 3.1 modem

Can we see the downstream stuff please ? As I stated, the upstream power is fine. 

Arris is wrong ! They have been passing the buck and have been conning people with that statement lately !! They are probably trying to cover up for the lawsuits against them because of their use of the horrible Puma 6 chipsets... Only the Comcast plant / engineering specs matter;

 

Specification Min Max
Downstream Power Level
Cable Modems -10dBmV +10dBmV
Gateways and EMTAs -7dBmV +7dBmV
Downstream Signal to Noise Ratio 35dB -
Upstream Power Level +35dBmV +50dBmV
Upstream Signal to Noise Ratio 31dB -
Upstream Receive Power -2dBmV
+2dBmV

 

You didn't describe your connectivity problem as was asked ?



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I am a Customer Expert volunteering my time to help other customers here in the Forums.
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Highlighted
Frequent Visitor

Re: uptream power level not within acceptable range for docsis 3.1 modem

well here it is

 

IndexLock StatusFrequency (Hz)SNR (dB)Power Level (dBmV)Modulation

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
Locked
507000000
405000000
411000000
417000000
423000000
429000000
435000000
441000000
447000000
453000000
459000000
465000000
471000000
477000000
483000000
489000000
495000000
513000000
519000000
525000000
531000000
543000000
549000000
555000000
561000000
567000000
573000000
579000000
585000000
591000000
597000000
38.983261
40.366287
40.366287
40.366287
40.366287
40.946209
40.366287
38.983261
40.946209
38.983261
40.366287
40.366287
38.983261
38.983261
38.983261
38.983261
38.983261
38.983261
40.366287
38.983261
38.983261
40.366287
40.366287
38.983261
40.366287
40.366287
40.366287
38.983261
40.366287
38.983261
38.983261
-0.799999
-1.200001
-1.299999
-1.099998
-1.200001
-1.200001
-1.400002
-1.400002
-1.299999
-1.900002
-1.799999
-1.900002
-2.000000
-1.799999
-1.900002
-1.599998
-1.700001
-0.799999
-0.799999
-0.599998
-0.400002
-0.200001
0.299999
0.200001
0.000000
0.400002
0.200001
0.299999
-0.099998
-0.200001
0.099998
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
QAM256
Highlighted
Expert

Re: uptream power level not within acceptable range for docsis 3.1 modem

It's all good. You still haven't described your connectivity problem...



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I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
Highlighted
Frequent Visitor

Re: uptream power level not within acceptable range for docsis 3.1 modem

Well on 6th day I couldnt login into gateway

on 7th day all connectins were lost, no wifi or wired connection at all

endup resetting modem to bring it back online

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Frequent Visitor

Re: uptream power level not within acceptable range for docsis 3.1 modem

any thoughts