J

Visitor

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3 Messages

Mon, Nov 21, 2022 12:41 AM

Intermitted Internet Drop

Service Drops for about 5 seconds consistently every hour or so. Its always breif but is consistent and annoying.  I beleive looking at my modems logs the last time I watched it is Event Type Code: 20 when it drops. I have a large CM-STATUS messages all about channel 193.

This has not become an isuee till a few months ago. Before then we never experienced this but has been going on for almost 4 months+. Before that for about 2 years or so perfect service. No hardware changes as far as router or modem. 

Effects all devies on the network. 

Please advsie and see logs below as well as connection info. I bolded the code 20.

Connection
   Startup Sequence    
   Startup Step Status Comment

  
   Acquire Downstream Channel 567000000 Hz Locked
  
   Upstream Connection OK Operational
  
   Boot State OK Operational

  
   Configuration File OK
  
   Security Enabled BPI+
  


   Connection Status    
   System Up Time 0 days 01h:10m:19s  
  
   Network Access Allowed  
  


   Downstream Bonded Channels  
  
   Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected
   1 Locked QAM256 20 567.0 -6.4 42.6 0 0
   2 Locked QAM256 1 447.0 -5.2 43.6 0 0
   3 Locked QAM256 2 453.0 -5.3 43.5 0 0
   4 Locked QAM256 3 459.0 -5.1 43.6 0 0
   5 Locked QAM256 4 465.0 -5.5 43.4 0 0
   6 Locked QAM256 5 471.0 -5.7 43.2 0 0
   7 Locked QAM256 6 477.0 -5.4 43.4 0 0
   8 Locked QAM256 7 483.0 -5.1 43.5 0 0
   9 Locked QAM256 8 489.0 -5.5 43.3 0 0
   10 Locked QAM256 9 495.0 -5.8 43.0 0 0
   11 Locked QAM256 10 507.0 -5.6 43.2 0 0
   12 Locked QAM256 11 513.0 -5.9 43.0 0 0
   13 Locked QAM256 12 519.0 -6.2 42.6 0 0
   14 Locked QAM256 13 525.0 -6.2 42.4 0 0
   15 Locked QAM256 14 531.0 -5.6 43.2 0 0
   16 Locked QAM256 15 537.0 -5.5 43.3 0 0
   17 Locked QAM256 16 543.0 -5.9 43.0 0 0
   18 Locked QAM256 17 549.0 -6.3 42.7 0 0
   19 Locked QAM256 18 555.0 -5.9 42.9 0 0
   20 Locked QAM256 19 561.0 -6.0 42.8 0 0
   21 Locked QAM256 21 573.0 -6.5 42.4 0 0
   22 Locked QAM256 22 579.0 -6.0 42.7 0 0
   23 Locked QAM256 23 585.0 -5.9 42.6 0 0
   24 Locked QAM256 24 591.0 -6.0 42.4 0 0
   25 Locked QAM256 25 597.0 -6.4 42.2 0 0
   26 Locked QAM256 26 603.0 -6.2 42.3 0 0
   27 Locked QAM256 27 609.0 -6.2 42.3 0 0
   28 Locked QAM256 28 615.0 -6.9 41.9 0 0
   29 Locked QAM256 29 621.0 -7.3 40.4 0 0
   30 Locked QAM256 30 627.0 -7.1 38.0 0 0
   31 Locked QAM256 31 633.0 -6.9 38.6 0 0
   32 Locked QAM256 32 639.0 -6.8 38.8 0 0
   33 Locked OFDM PLC 193 762.0 -8.5 38.6 95392465 36209


   Upstream Bonded Channels  
  
   Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
   1 Locked SC-QAM 1 5120 35.6 50.5
   2 Locked SC-QAM 2 5120 29.2 50.8
   3 Locked SC-QAM 3 5120 22.8 51.0
   4 Locked SC-QAM 4 5120 16.4 51.5
   5 Locked SC-QAM 5 1280 39.6 47.3

Event Log
   Event Log  
  

Accepted Solution

EG

Expert

 • 

96.8K Messages

9 days ago

@Johnnyvp5050 

Please redact all of the CM MAC and the CMTS MAC addresses in your error log entries for your privacy. They are considered to be personal information. The posting of personally identifiable information is a violation of their forum guidelines. The forum bot will not allow your post to be seen publically. It flagged your post as "Private".

That said. The upstream power is too high and it may be intermittently fluctuating even higher out of spec. The downstream power is on the low / weak side as well. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In an effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1000 MHz, bi-directional, and no gold colored garbage from Radio Shack, Home Depot, Target, etc. Splitters should be swapped with known to be good / new ones to test.

Also check the coax cable for any damage such as cuts, nicks, abrasions, kinks, sharp bends, etc.

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two-way splitter connected directly off of the drop from the street / pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.


Good luck with it !

(edited)

Visitor

 • 

3 Messages

10 days ago

I have a Motorolla MB8600 modem and a Netgear R7400 router

Visitor

 • 

3 Messages

10 days ago

Here is with more uptime...

Connection
   Startup Sequence    
   Startup Step Status Comment

  
   Acquire Downstream Channel 567000000 Hz Locked
  
   Upstream Connection OK Operational
  
   Boot State OK Operational

  
   Configuration File OK
  
   Security Enabled BPI+
  


   Connection Status    
   System Up Time 0 days 01h:52m:19s  
  
   Network Access Allowed  
  


   Downstream Bonded Channels  
  
   Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected
   1 Locked QAM256 20 567.0 -6.3 42.5 745 2337
   2 Locked QAM256 1 447.0 -5.2 43.7 732 2657
   3 Locked QAM256 2 453.0 -5.3 43.4 870 3215
   4 Locked QAM256 3 459.0 -5.1 43.6 854 3509
   5 Locked QAM256 4 465.0 -5.4 43.4 790 2898
   6 Locked QAM256 5 471.0 -5.7 43.3 798 2697
   7 Locked QAM256 6 477.0 -5.3 43.4 812 3355
   8 Locked QAM256 7 483.0 -5.1 43.5 974 3599
   9 Locked QAM256 8 489.0 -5.5 43.3 927 2957
   10 Locked QAM256 9 495.0 -5.8 43.2 801 2773
   11 Locked QAM256 10 507.0 -5.5 43.2 922 3296
   12 Locked QAM256 11 513.0 -5.9 43.0 738 2543
   13 Locked QAM256 12 519.0 -6.2 42.5 639 1918
   14 Locked QAM256 13 525.0 -6.1 42.5 854 2515
   15 Locked QAM256 14 531.0 -5.5 43.0 862 2756
   16 Locked QAM256 15 537.0 -5.5 43.2 744 2532
   17 Locked QAM256 16 543.0 -5.9 43.0 689 2540
   18 Locked QAM256 17 549.0 -6.3 42.8 923 3312
   19 Locked QAM256 18 555.0 -5.9 43.0 1063 3506
   20 Locked QAM256 19 561.0 -6.0 42.8 810 2729
   21 Locked QAM256 21 573.0 -6.5 42.3 858 2660
   22 Locked QAM256 22 579.0 -6.0 42.6 768 2286
   23 Locked QAM256 23 585.0 -5.9 42.7 593 1615
   24 Locked QAM256 24 591.0 -6.0 42.6 523 1507
   25 Locked QAM256 25 597.0 -6.3 42.1 778 2292
   26 Locked QAM256 26 603.0 -6.1 42.2 878 2887
   27 Locked QAM256 27 609.0 -6.2 42.4 820 2715
   28 Locked QAM256 28 615.0 -6.9 41.9 758 2434
   29 Locked QAM256 29 621.0 -7.3 41.4 907 3040
   30 Locked QAM256 30 627.0 -7.0 41.3 856 3032
   31 Locked QAM256 31 633.0 -6.9 40.6 625 2028
   32 Locked QAM256 32 639.0 -6.7 41.4 437 1416
   33 Locked OFDM PLC 193 762.0 -8.5 39.0 146829263 43948


   Upstream Bonded Channels  
  
   Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
   1 Locked SC-QAM 1 5120 35.6 50.5
   2 Locked SC-QAM 2 5120 29.2 50.8
   3 Locked SC-QAM 3 5120 22.8 51.0
   4 Locked SC-QAM 4 5120 16.4 51.5
   5 Locked SC-QAM 5 1280 39.6 47.3

Official Employee

 • 

432 Messages

@Johnnyvp5050  Thank you so much for your post on help with your connection issues. Taking a look at the information you provided @EG  is right on point! With the upstream and downstream power issues that would definitely cause the issues, you are describing. Have you by chance gotten to take a look at EG's suggestions? 

(edited)

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