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can someone give me an opinion on these modem stats I think I am going nuts

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majorkong
Frequent Contributor

can someone give me an opinion on these modem stats I think I am going nuts

 

 

Can't figure out if this is good or bad? they just did work on the pole ( 2 hours ago) and I am getting wildly fluctuating speeds 3mb - 54mb down 11mb up ( never varies for some reason)

 

 

Downstream Bonding Channel Value
Channel ID10 11 12 13 14 15 
Frequency699000000 Hz 687000000 Hz 711000000 Hz 717000000 Hz 723000000 Hz 729000000 Hz 735000000 Hz 741000000 Hz 
Signal to Noise Ratio34 dB 29 dB 37 dB 37 dB 37 dB 37 dB 34 dB 32 dB 
Downstream ModulationQAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 QAM256 
Power Level
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
-3 dBmV  -3 dBmV  -3 dBmV  -4 dBmV  -5 dBmV  -5 dBmV  -7 dBmV  -9 dBmV  

 

Upstream Bonding Channel Value
Channel ID91 89 90 
Frequency22600000 Hz 36400000 Hz 29500000 Hz 
Ranging Service ID8297 8297 8297 
Symbol Rate5.120 Msym/sec 5.120 Msym/sec 5.120 Msym/sec 
Power Level43 dBmV 45 dBmV 44 dBmV 
Upstream Modulation[3] QPSK
[3] 64QAM
 
[3] QPSK
[3] 64QAM
 
[3] QPSK
[3] 64QAM
 
Ranging StatusSuccess Success Success 

 

Signal Stats (Codewords) Bonding Channel Value
Channel ID10 11 12 13 14 15 
Total Unerrored Codewords30053218 19087239 30075011 30083197 30051259 30049930 30052630 30053283 
Total Correctable Codewords5315 10740031 14 83 13 312 
Total Uncorrectable Codewords688 240433 527 521 659 1442 670 802 
Accepted Solution

Re: can someone give me an opinion on these modem stats I think I am going nuts

SO had a really productive meeting with a member of comcast technical, really a VERY impressive young man. He has a plan to address our issues in the area AND the will to address it practically. I am confident that we will get this system sorted out and all our businesses back on track VERY quickly if we just get out of his way. Thank you all on this forum for your guidance and support. It really helped me alot.

MK

 

View solution in context
Community Manager
Community Manager

Re: can someone give me an opinion on these modem stats I think I am going nuts

Hello majorkong,

 

Based on this report, it appears your downstream signal to noise is not within the recommended perimeter.

Normally it should be around: -22dB to -29dB range.

In most cases a tech call is warranted here to fix the issue.

 

Majorkong could clarify a few items for the community?

1. Are you still having this issue?

2. Before any work on the pole did your service had a similar issue?

 

Thank you

 

majorkong
Frequent Contributor

Re: can someone give me an opinion on these modem stats I think I am going nuts

Hey Jon

 

thank you for taking an interest in this. Here are the answers to your questions

 

 

1 yes we are STILL having exactly the same issue.

 

2 yes we have had issues that CAUSED the work to be done on the pole.

 

so far we have had:

1 four onsite tech visits ( one replaced all the cable FROM the modem to the outside box and checked the box) ALL techs have escalated the issue to the line manager level.

 

2 on comcasts suggestion, we argued it was pointless, the line speed was increased to 50mb from 16mb AND a protention trace put on to check. This did NOTHING except increase the error rate.

 

3 we have started to canvass other businesses in the area ALL have the same issue and ALL have reported it to no avail.

 

4 the "protention" department are worse than useless as they seem unable to see what the techs AND our datamonitors see and keep asking "if you are having problems call the help line..." Completely useless in our opinion. They are undoing all the EXCELLENT work the frontline help desk are doing. What is the point in excellent frontline people if the back office people are incompetent?

 

 

We have stated, on the record, several times that this is a backplane infrastructure issue and NOT localized.

 

Community Manager
Community Manager

Re: can someone give me an opinion on these modem stats I think I am going nuts

Thank you for clarify majorkong, I appreciate it.

 

I've checked the region where you are located and found the following:

1. There is some signal noise in the line but they are corrected on the node.

2. On the node it-self there is not enough devices to warrant a node split.

 

majorkong, can you setup the following test and post it for the community?

On your down time or in the weekend connect a single computer directly to the modem.

Start an extend ping test over that period time using a program such as: pingplotter

Once the test is completed, please post it here so the community further analyze and assist.

 

 

Thank you

majorkong
Frequent Contributor

Re: can someone give me an opinion on these modem stats I think I am going nuts

Hey Comcast John

thank you so much for the reply and the checking of our region. Here is the progress so far:

 

1 I will be meeting with two representives of Comcast tomorrow to address my concerns. Uppermost in my mind is the possible data red lining of my fellow immigrant businesses. A possibility being raised with Sen: Durbin, Kirk,Sessions,Graham,Comyn hopefully in time for their discussions on 4/21/15 re Comcast/Time Warner.

 

 

2 I do not think pingplot test will help as we are already addressing this issue in a more widespread manner using other techniques. The problem is now known to be more geographically distributed than just my location and we will gather the necessary data to prove our point using experts from the fine universities that surround us. I think this will carry more weight than my pingplot and will not take any more of this forums time.

 

I think all parties know the root cause of this issue and know the solution. The issue is how quickly will they address it and if it will be necessary to make this political especially in the run up to an election coming from a demographic that is sought after by ALL candidates.

 

 

Highlighted
majorkong
Frequent Contributor

Re: can someone give me an opinion on these modem stats I think I am going nuts

SO had a really productive meeting with a member of comcast technical, really a VERY impressive young man. He has a plan to address our issues in the area AND the will to address it practically. I am confident that we will get this system sorted out and all our businesses back on track VERY quickly if we just get out of his way. Thank you all on this forum for your guidance and support. It really helped me alot.

MK