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Friday, July 12th, 2024

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Internet cutting out periodically with MB8600 modem

I keep losing internet multiple times a day. It eventually comes back on its own after a few minutes. I'm using an MB8600 modem with a pfsense router. I've been using this setup for about 5 years with no issues until a few months ago. It's definitely not the router. Looking at the modem logs, there's quite a few errors, but I'm not very familiar with modems, so I'm having a hard time figuring out what it all means. All google searches keep bringing me to this forum. As far as I'm aware, there aren't any splitters between the modem and the street. Cable looks ok. Any help would be appreciated. This has been very frustrating to try to fix. I've included the up/downstream information as well as the logs, with MAC redacted. Thank you

Downstream Bonded Channels  
  
   Channel Lock Status Modulation Channel ID Freq. (MHz) Pwr (dBmV) SNR (dB) Corrected Uncorrected
   1 Locked QAM256 20 519.0 5.2 44.3 42967 46125
   2 Locked QAM256 13 477.0 5.6 44.3 74933 67020
   3 Locked QAM256 14 483.0 5.6 44.4 70189 63863
   4 Locked QAM256 15 489.0 5.5 44.2 68158 62702
   5 Locked QAM256 16 495.0 5.4 44.3 66482 63799
   6 Locked QAM256 17 501.0 5.4 44.4 61344 59551
   7 Locked QAM256 18 507.0 5.4 44.4 63242 61275
   8 Locked QAM256 19 513.0 5.4 44.4 59358 57327
   9 Locked QAM256 21 525.0 5.2 44.2 57652 57689
   10 Locked QAM256 22 531.0 5.1 44.2 52428 55468
   11 Locked QAM256 23 537.0 5.0 44.0 53258 54229
   12 Locked QAM256 24 543.0 5.0 44.2 50576 52285
   13 Locked QAM256 25 549.0 4.9 43.9 47662 49741
   14 Locked QAM256 26 555.0 4.8 44.0 47015 50122
   15 Locked QAM256 27 561.0 4.9 43.9 45589 48699
   16 Locked QAM256 28 567.0 5.0 44.0 43130 47894
   17 Locked QAM256 29 573.0 5.1 44.0 43116 48327
   18 Locked QAM256 30 579.0 5.2 44.1 39033 45308
   19 Locked QAM256 31 585.0 5.1 44.1 39710 44514
   20 Locked QAM256 32 591.0 5.1 44.1 37905 43093
   21 Locked QAM256 33 597.0 5.2 44.1 36249 43110
   22 Locked QAM256 34 603.0 5.2 44.0 34416 40432
   23 Locked QAM256 35 609.0 5.2 44.0 35016 40930
   24 Locked QAM256 36 615.0 5.2 44.0 31950 39015
   25 Locked QAM256 37 621.0 5.3 43.9 32527 39062
   26 Locked QAM256 38 627.0 5.3 43.9 30762 39350
   27 Locked QAM256 39 633.0 5.4 43.9 30598 38025
   28 Locked QAM256 40 639.0 5.4 44.0 28750 37092
   29 Locked QAM256 41 645.0 5.4 44.0 28203 36030
   30 Locked QAM256 42 651.0 5.5 44.0 27359 36590
   31 Locked QAM256 43 657.0 5.6 43.9 27394 35637
   32 Locked QAM256 44 663.0 5.7 43.7 26315 34066
   33 Locked OFDM PLC 193 722.0 5.9 43.5 1514681687 15221
   34 Locked OFDM PLC 194 957.0 3.7 43.2 1211047063

4314

Upstream Bonded Channels  
  
   Channel Lock Status Channel Type Channel ID Symb. Rate (Ksym/sec) Freq. (MHz) Pwr (dBmV)
   1 Locked SC-QAM 17 5120 16.4 43.8
   2 Locked SC-QAM 18 5120 22.8 44.5
   3 Locked SC-QAM 19 5120 29.2 45.0
   4 Locked SC-QAM 20 5120 35.6 45.5

 Event Log  
  
    Time    Priority    Description 
    08:07:23
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
    08:07:23
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
    08:07:24
Fri Jul 12 2024		   Notice (6)   DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:07:25
Fri Jul 12 2024		   Notice (6)   DS profile assignment change. DS Chan ID: 33; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:07:33
Fri Jul 12 2024		   Critical (3)   UCD invalid or channel unusable;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:08:26
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:09:18
Fri Jul 12 2024		   Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:09:26
Fri Jul 12 2024		   Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:09:26
Fri Jul 12 2024		   Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:09:31
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:Fixed Initial, 5-42MHz.
    08:09:33
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
    08:09:33
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
    08:09:33
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-85MHz.
    08:09:37
Fri Jul 12 2024		   Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:09:43
Fri Jul 12 2024		   Notice (6)   Honoring MDD; IP provisioning mode = IPv6
    08:09:51
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
    08:09:51
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
    08:09:55
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
    08:09:57
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
    08:09:57
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
    08:09:57
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change_Ignored:TLV-21.1, 85MHz.
    08:09:59
Fri Jul 12 2024		   Critical (3)   UCD invalid or channel unusable;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:10:01
Fri Jul 12 2024		   Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:10:04
Fri Jul 12 2024		   Notice (6)   Honoring MDD; IP provisioning mode = IPv6
    08:10:16
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
    08:10:16
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
    08:10:16
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
    08:10:17
Fri Jul 12 2024		   Notice (6)   DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:10:18
Fri Jul 12 2024		   Notice (6)   DS profile assignment change. DS Chan ID: 33; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:10:26
Fri Jul 12 2024		   Critical (3)   UCD invalid or channel unusable;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:10:39
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:10:39
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    08:10:39
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:10:39
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    08:10:39
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=0;CM-QOS=1.1;CM-VER=3.1;
    08:10:39
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    08:11:07
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:11:07
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    08:19:27
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:20:21
Fri Jul 12 2024		   Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:20:22
Fri Jul 12 2024		   Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:20:23
Fri Jul 12 2024		   Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:20:24
Fri Jul 12 2024		   Critical (3)   No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:20:27
Fri Jul 12 2024		   Critical (3)   Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:20:33
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:Fixed Initial, 5-42MHz.
    08:20:34
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
    08:20:34
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
    08:20:34
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:TLV-21.1, 5-85MHz.
    08:20:40
Fri Jul 12 2024		   Notice (6)   Honoring MDD; IP provisioning mode = IPv6
    08:20:49
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
    08:20:49
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
    08:20:53
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
    08:20:56
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
    08:20:56
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
    08:20:56
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change_Ignored:TLV-21.1, 85MHz.
    08:20:58
Fri Jul 12 2024		   Critical (3)   UCD invalid or channel unusable;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:21:02
Fri Jul 12 2024		   Notice (6)   Honoring MDD; IP provisioning mode = IPv6
    08:21:11
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
    08:21:11
Fri Jul 12 2024		   Critical (3)   CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
    08:21:11
Fri Jul 12 2024		   Critical (3)   CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
    08:21:12
Fri Jul 12 2024		   Notice (6)   DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:21:13
Fri Jul 12 2024		   Notice (6)   DS profile assignment change. DS Chan ID: 33; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:21:21
Fri Jul 12 2024		   Critical (3)   UCD invalid or channel unusable;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:21:44
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:21:44
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    08:21:44
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:21:44
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    08:21:44
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:21:44
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    08:21:44
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    08:21:44
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    08:57:22
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:29:21
Fri Jul 12 2024		   Notice (6)   CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:30:09
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:30:38
Fri Jul 12 2024		   Notice (6)   CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:30:43
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:30:43
Fri Jul 12 2024		   Notice (6)   CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:30:48
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:30:49
Fri Jul 12 2024		   Notice (6)   CM-STATUS message sent. Event Type Code: 16; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:31:42
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:31:55
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:31:55
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    09:32:09
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:32:09
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    09:32:09
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:32:09
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    09:32:09
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:32:09
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    09:33:24
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    09:40:30
Fri Jul 12 2024		   Notice (6)   CM-STATUS message sent. Event Type Code: 24; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    10:35:18
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    10:38:30
Fri Jul 12 2024		   Notice (6)   CM-STATUS message sent. Event Type Code: 16; Chan ID: 193; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    10:38:49
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    10:38:49
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    10:38:49
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    10:38:49
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    10:38:50
Fri Jul 12 2024		   Warning (5)   RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    10:38:50
Fri Jul 12 2024		   Warning (5)   Dynamic Range Window violation
    10:45:40
Fri Jul 12 2024		   Notice (6)   CM-STATUS message sent. Event Type Code: 24; Chan ID: 193 194; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
    10:53:12
Fri Jul 12 2024		   Critical (3)   Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;

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