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tmk's avatar
tmk
New Contributor

Need help... High random packet loss.

My Internet service has been an issue for almost 2 months. I experience random periods of packet loss.

Multiple (7) tech visits have not fixed it. Cable has been replaced from the street to the modem. 2 different modems did the same thing.

Levels good. Modem does log T3 ranging timeouts.

No Ranging Response received - T3 time-out;CM-MAC=xxxxxxxx;CMTS-MAC=xxxxxxxxxx;CM-QOS=1.1;CM-VER=3.0;

I am at the end of my cox rope. Anybody have any clues for fixing this?

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  • ChrisL's avatar
    ChrisL
    Former Moderator
    @tmk

    Frequent T3 errors would indicate a problem with either the modem or signal to it. Can you try posting the full logs and signal status?

  • tmk's avatar
    tmk
    New Contributor
    DownstreamBonding Channel Value
    Channel ID 198  193  194  195  196  197  199  200 
    Frequency 957000000 Hz  927000000 Hz  933000000 Hz  939000000 Hz  945000000 Hz  951000000 Hz  963000000 Hz  969000000 Hz 
    Signal to Noise Ratio 38 dB  38 dB  38 dB  38 dB  38 dB  38 dB  38 dB  38 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
    		6 dBmV   6 dBmV   6 dBmV   6 dBmV   6 dBmV   6 dBmV   6 dBmV   6 dBmV  

    UpstreamBonding Channel Value
    Channel ID 2  1  3  4 
    Frequency 25800000 Hz  17600000 Hz  32200000 Hz  38600000 Hz 
    Ranging Service ID 648  648  648  648 
    Symbol Rate 5.120 Msym/sec  2.560 Msym/sec  5.120 Msym/sec  5.120 Msym/sec 
    Power Level 41 dBmV  41 dBmV  41 dBmV  42 dBmV 
    Upstream Modulation [3] 16QAM
    [3] 64QAM
         		 [3] QPSK
    [2] 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 198  193  194  195  196  197  199  200 
    Total Unerrored Codewords 2780506039  2780517828  2780494385  2780523707  2780489179  2780490745  2780491779  2780505745 
    Total Correctable Codewords 809  160  232  291  427  604  517  456 
    Total Uncorrectable Codewords 4592  1528  2637  3707  4917  4625  4760  3493 

  • ChrisL's avatar
    ChrisL
    Former Moderator
    @tmk

    Those levels do look good and I see some of your other diagnostic data you've submitted via other sources. Could you try getting some trace routes without the router and posting your results?

  • tmk's avatar
    tmk
    New Contributor

    Funny - Shortly after the first post the problem cleared up. It's been over 24 hours since the last failed ping test. That's the best it's been since I started the ping test.

    Hopefully it's fixed whatever it was.