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Multiple Drops per Day

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Multiple Drops per Day

My internet drops multiple times per day either for a 30+ seconds or in a need to reset the modem.  I have MB7420 that is subscriber owned.  Here is the signal and logs.

 

Connection


   Startup Sequence
 

 

   
   Startup Step Status Comment
 

 



  
   Acquire Downstream Channel 525000000 Hz Locked
 

 


  
   Upstream Connection OK Operational
 

 


  
   Boot State OK Operational
 

 



  
   Configuration File OK  
 

 


  
   Security Enabled BPI+
 

 


  


   Connection Status
 

 

   
   System Up Time 0 days 02h:27m:43s  
 

 


  
   Network Access Allowed  
 

 


  


   Downstream Bonded Channels
 

 

 
 

 


  
   Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected
1 Locked QAM256 13 525.0 3.0 38.8 754 923
2 Locked QAM256 1 447.0 3.6 38.8 765 855
3 Locked QAM256 2 453.0 3.7 38.8 790 862
4 Locked QAM256 3 459.0 3.8 38.8 767 878
5 Locked QAM256 4 465.0 4.0 39.0 720 930
6 Locked QAM256 5 471.0 4.2 39.2 703 901
7 Locked QAM256 6 477.0 3.8 38.9 728 953
8 Locked QAM256 7 483.0 3.3 38.7 813 1143
9 Locked QAM256 8 489.0 3.5 38.8 714 787
10 Locked QAM256 9 495.0 4.2 39.1 707 923
11 Locked QAM256 10 507.0 2.9 36.4 733 811
12 Locked QAM256 11 513.0 2.8 38.6 763 733
13 Locked QAM256 12 519.0 3.0 38.6 732 787
14 Locked QAM256 14 531.0 3.1 38.8 677 819
15 Locked QAM256 15 537.0 3.3 38.9 652 764
16 Locked QAM256 16 543.0 2.9 38.6 681 762
Total             11699 13831


   Upstream Bonded Channels
 

 

 
 

 


  
   Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
1 Locked ATDMA 1 5120 35.8 45.0
2 Not Locked Unknown 0 0 0 0.0
3 Not Locked Unknown 0 0 0 0.0
4 Not Locked Unknown 0 0 0

0.0

           

 

 

 Log
 

 

 
 

 


  
 Time   Priority   Description 
Wed May 20 13:37:45 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Wed May 20 13:38:17 2020   Critical (3)  Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Wed May 20 13:38:25 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Wed May 20 13:38:57 2020   Critical (3)  Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Wed May 20 13:39:25 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Wed May 20 13:39:57 2020   Critical (3)  Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Wed May 20 13:40:04 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Time Not Established  Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.0;CM-VER=3.0; 
Time Not Established  Critical (3)  No Ranging Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.0;CM-VER=3.0; 
Thu May 21 08:00:12 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:00:49 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:01:15 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:01:52 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:02:19 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:02:56 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:03:20 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:03:57 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:04:24 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 08:05:01 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 11:56:03 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 12:24:56 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 14:39:13 2020   Critical (3)  Resetting the cable modem due to docsDevResetNow 
Thu May 21 14:52:12 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 14:54:45 2020   Critical (3)  Resetting the cable modem due to docsDevResetNow 
Time Not Established  Critical (3)  No Ranging Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.0;CM-VER=3.0; 
Time Not Established  Notice (6)  Honoring MDD; IP provisioning mode = IPv6 
Thu May 21 15:29:54 2020   Critical (3)  REG RSP not received;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 15:29:56 2020   Critical (3)  Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 15:30:32 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.1;CM-VER=3.0; 
Thu May 21 15:30:57 2020   Critical (3)  Unicast Ranging Received Abort Response - Re-initializing MAC;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.0;CM-VER=3.0; 
Thu May 21 15:31:01 2020   Critical (3)  No Ranging Response received - T3 time-out;CM-MAC=00:40:36:46:f8:58;CMTS-MAC=00:5f:86:92:86:b3;CM-QOS=1.0;CM-VER=3.0; 
Thu May 21 15:31:12 2020   Notice (6)  Honoring MDD; IP provisioning mode = IPv6 
Highlighted
Diamond Problem Solver

Re: Multiple Drops per Day

You’ll want to investigate why you only have 1 upstream channel. Could be equipment, could be house wiring, could be maintenance put a high pass filter on your drop for noise. You should have 3 possibly 4 upstream channels (depending on market).

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New Poster

Re: Multiple Drops per Day

Thanks for the info.  It explains my very slow upload speed.  Could this explain the drops as well?  I've heard that overloading the upload channel will stop downloads.

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Diamond Problem Solver

Re: Multiple Drops per Day

It could if there’s ingress/noise present

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New Poster

Re: Multiple Drops per Day

I just checked the modem again and now it shows 4 channels.  Is that normal to take a day to get 4 channels?

 

Upstream Bonded Channels
 

 

 
 

 


  
   Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
1 Locked ATDMA 2 5120 29.4 44.0
2 Locked ATDMA 1 5120 35.8 44.0
3 Locked ATDMA 3 5120 23.0 44.0
4 Locked ATDMA 4 5120 16.6 42.5

 

Highlighted
Diamond Problem Solver

Re: Multiple Drops per Day

The channels were always there , it’s a matter of your modem being able to read them. Just something to watch in the future

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Expert

Re: Multiple Drops per Day

FWIW, intermittent noise ingress into the line / connection quality impairments can cause the channels to unlock and return.



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