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tserafin1's avatar
tserafin1
New Contributor II
2 years ago

Dropping the connection for a few seconds... all the time

I'm sure there are plenty of similar posts but I've been having this issue for over a week and after 3 tech visits still no resolution so maybe someone here could help. Had gigablast for 3 years without any issues. Over a week ago the connection kept dropping for few seconds, lights on the router didn't change but I get bunch of the T3/T2 errors. I noticed that I had power of around -49 dBmV on downstream channels in the 200MHz range. Techs came out and they did replace a corroded trap at pole and said it should resolve the issues. After that was replaced I noticed that the channels in the 200 MHz range now were within normal range (close to 0) but the internet drops still happen. I can't even listen to one Spotify song without it cutting out for few seconds. Both me and my wife work from home so internet is critical, I really need help. Here is the modem info, maybe someone here has any suggestions (also, tech checked all the cables, everything looks good. I've even connected the modem outside directly from the pole and still the same issue).

 Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected
   1 Locked QAM256 45 855.0 1.7 42.1 43 0
   2 Locked QAM256 17 213.0 2.4 42.4 0 0
   3 Locked QAM256 18 219.0 2.8 42.6 0 0
   4 Locked QAM256 19 225.0 3.1 42.8 0 0
   5 Locked QAM256 20 231.0 3.5 43.0 0 0
   6 Locked QAM256 21 237.0 3.9 43.1 0 0
   7 Locked QAM256 22 243.0 4.2 43.4 0 0
   8 Locked QAM256 23 249.0 4.5 43.6 0 0
   9 Locked QAM256 24 255.0 4.5 43.4 0 0
   10 Locked QAM256 25 735.0 2.2 42.3 1 0
   11 Locked QAM256 26 741.0 2.4 42.4 3 0
   12 Locked QAM256 27 747.0 2.6 42.4 1 0
   13 Locked QAM256 28 753.0 2.7 42.4 1 0
   14 Locked QAM256 29 759.0 2.6 42.4 2 0
   15 Locked QAM256 30 765.0 2.4 42.4 3 0
   16 Locked QAM256 31 771.0 2.2 42.3 6 0
   17 Locked QAM256 32 777.0 2.3 42.5 3 0
   18 Locked QAM256 33 783.0 2.4 42.5 1 0
   19 Locked QAM256 34 789.0 2.2 42.4 5 0
   20 Locked QAM256 35 795.0 2.0 42.2 7 0
   21 Locked QAM256 36 801.0 1.9 42.2 5 0
   22 Locked QAM256 37 807.0 1.8 42.2 4 0
   23 Locked QAM256 38 813.0 1.9 42.1 6 0
   24 Locked QAM256 39 819.0 1.9 42.2 8 0
   25 Locked QAM256 40 825.0 1.9 42.1 10 0
   26 Locked QAM256 41 831.0 1.9 42.2 16 0
   27 Locked QAM256 42 837.0 1.7 42.0 16 0
   28 Locked QAM256 43 843.0 1.7 42.1 21 0
   29 Locked QAM256 44 849.0 1.8 42.0 25 0
   30 Locked QAM256 46 861.0 1.7 42.0 43 0
   31 Locked QAM256 47 867.0 1.6 41.9 47 0
   32 Locked QAM256 48 873.0 1.3 41.5 52 0
   33 Locked OFDM PLC 159 300.0 4.7 42.9 563054 0
   34 Locked OFDM PLC 160 918.0 2.6 41.9 51494722 0

Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
   1 Locked SC-QAM 1 5120 17.6 39.0
   2 Locked SC-QAM 2 5120 24.0 39.0
   3 Locked SC-QAM 3 5120 30.4 38.5
   4 Locked SC-QAM 4 5120 36.8 39.0
   5 Not Locked OFDMA 6 44000 36.8 24.8

 These errors are continuous (note, I removed the MAC address

21:00:32
Sat Feb 25 2023
  Critical (3)   No Maintenance Broadcasts for Ranging opportunities received - T2 time-out
    21:01:06
Sat Feb 25 2023
  Critical (3)   No Ranging Response received - T3 time-out
    21:01:16
Sat Feb 25 2023
  Critical (3)   No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;
    21:01:53
Sat Feb 25 2023
  Critical (3)   No Ranging Response received - T3 time-out;
    21:02:03
Sat Feb 25 2023
  Critical (3)   No Maintenance Broadcasts for Ranging opportunities received - T2 time-out;
    21:05:05
Sat Feb 25 2023
  Critical (3)   No Ranging Response received - T3 time-out;

10 Replies

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  • WiderMouthOpen's avatar
    WiderMouthOpen
    Esteemed Contributor

    Wow, looks like you are one of the lucky few upgrades to 2 downstream OFDM and 1 upstream OFDM. The upstream OFDM change is probably what is causing your problem. However T3 errors is a old/common issue caused by noise on the line. Do you have above ground(aerial) or underground wiring?

    • tserafin1's avatar
      tserafin1
      New Contributor II

      Line is above ground, any idea what can be done in regards to the upstream ODFM? 

      • WiderMouthOpen's avatar
        WiderMouthOpen
        Esteemed Contributor

        I wish I could tell you but it's so new. You are the first customer I have seen on here with the upgrade so I don't know what is normal. Should the upstream OFDM channel be locked? Is it OK for the power level to be so low? What is your upstream SNR? These are all questions you can ask a technician. Sorry I don't have answers for you.