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ult1musmax1mus's avatar
ult1musmax1mus
New Contributor

Internet Speeds Greatly Reduced

Hello all,

I have the 50mb package currently, but of late I am only receiving around 6-7mb up and down and my service will altogether drop out 1+ times every hour.  I have had the service for around 1.5 years.  About 6 months ago, I removed the cable from my package.  These problems only started in the last week or 2.  I had a technician out yesterday for 2.5 hours or so.  He checked everything and even replaced the outlet and did some work in the box right outside of my house.  We called and reset the modem several times even removing it from the account and re-adding it and he installed and removed some form of line filter.  I also believe that he removed some amplifiers, etc. that were provided with the cable service.  All the while, my speeds remained in the same 6-7 range.  He concluded that it was likely the modem and I have ordered a replacement, but after reading more I am not sure that that will fix the problem.  I have included my diagnostic information below.  Unfortunately, I am no expert in this, but I do think that channel 69 may be the problem.

Model Name: SB6141
Vendor Name: Motorola
Firmware Name: SB_KOMODO-1.0.6.16-SCM00-NOSH
Boot Version: PSPU-Boot(25CLK) 1.0.12.18m3
Hardware Version: 7.0
Serial Number: 397179431540963301012022
Firmware Build Time: Feb 16 2016 11:28:04

DownstreamBonding Channel Value
Channel ID 70  65  66  67  68  69  71  72 
Frequency 939000000 Hz  909000000 Hz  915000000 Hz  921000000 Hz  927000000 Hz  933000000 Hz  945000000 Hz  951000000 Hz 
Signal to Noise Ratio 39 dB  39 dB  38 dB  39 dB  39 dB  33 dB  39 dB  39 dB 
Downstream Modulation QAM256  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   2 dBmV   2 dBmV   2 dBmV   2 dBmV   3 dBmV   4 dBmV   4 dBmV  

UpstreamBonding Channel Value
Channel ID 2  1  3  4 
Frequency 27500000 Hz  21000000 Hz  34000000 Hz  38900000 Hz 
Ranging Service ID 714  714  714  714 
Symbol Rate 5.120 Msym/sec  5.120 Msym/sec  5.120 Msym/sec  2.560 Msym/sec 
Power Level 49 dBmV  49 dBmV  50 dBmV  49 dBmV 
Upstream Modulation [3] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 
Ranging Status Success  Success  Success  Success 

Signal Stats (Codewords)Bonding Channel Value
Channel ID 70  65  66  67  68  69  71  72 
Total Unerrored Codewords 187726823  187738145  187746287  187754349  187720619  150723485  187725965  187737183 
Total Correctable Codewords 2053  2195  2590  2243  2350  2596537  2050  1905 
Total Uncorrectable Codewords 1612  1409  1508  2328  2624  34472404  1461  1534 

Any help is greatly appreciated.

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  • ult1musmax1mus's avatar
    ult1musmax1mus
    New Contributor
    DownstreamBonding Channel Value
    Channel ID 68  69  71  72 
    Frequency 927000000 Hz  933000000 Hz  945000000 Hz  951000000 Hz 
    Signal to Noise Ratio 39 dB  33 dB  39 dB  39 dB 
    Downstream Modulation 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
    		2 dBmV   3 dBmV   4 dBmV   4 dBmV  
  • grymwulf's avatar
    grymwulf
    Contributor II

    Your table got a bit truncated, but I did notice on your codeword errors that channel ID 69 is showing an unacceptable error rate.  I'd definitely use a test modem to check it.  Problems on just one frequency are hard to diagnose, but if it persists through different modems it might be some interference from another device (not necessarily in your residence).  To test in a case like this I usually recommend stopping by a cox store and renting a modem for a couple of days.  If the problem goes away you can decide at that point what you need to do.  If it doesn't go away it makes it difficult for them to blame your device since their device is also doing it.