MB8600 Event Type Code 16, 24, and some others

 It seems that for a significant amount of the time, the arrow pointing down on the modem is flashing blue.  The Up arrow, and the globe are solid blue.  The logs seem to alternate between event type code 24 and 16. Sometimes I get some other event codes such as 1, 20,21,22,and 23.  I've restarted the modem, and reset to factory defaults.  I first noticed this issue  a couple weeks ago.  Before this, log entries would be relatively infrequent.  Talking to Motorola support, they said it was likely intermittent noise on the line.  Generally, this doesn't impact most internet use, but VOIP calls have dropped, and remote desktop seems to have lag issues every so often.

 I have had the modem for a little over 3 years.  I haven't changed anything except for upgrading to Gigabit service several months ago.    The house has a single splitter (PPC-5M-UU) installed by the first technician 3 years ago.  Then, I had at least three technician visits. The second visit changed most of the cable connector ends.  The third visit confirmed that certain frequencies had issues even when directly connected to the cable pedestal in my backyard.  The fix came when something was done in my neighborhood.  My backyard is next to a pond.

Here are my connection statistics:

Here are my logs (with MACs removed):

Log 1:

  Event Log

        Time            Priority                Description
        14:02:51
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:36
Sat Nov 20 2021                 Warning (5)             MDD message timeout;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:36
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 20; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:36
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 4; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:36
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 23; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:36
Sat Nov 20 2021                 Warning (5)             MDD message timeout;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:36
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 20; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:36
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:36
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 1; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:03:37
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 4; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:35:18
Sat Nov 20 2021                 Warning (5)             MDD message timeout;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:35:19
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 20; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:35:19
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:35:19
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 21; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:35:44
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 4; Chan ID: 7 8 9 10 11 12 13 14 15 16 17 18 19 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:09
Sat Nov 20 2021                 Warning (5)             MDD message timeout;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:10
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 23; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:11
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 22; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:13
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:15
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:23
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:23
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 4; Chan ID: 7 8 9 10 11 12 13 14 15 16 17 18 19 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:47
Sat Nov 20 2021                 Warning (5)             MDD message timeout;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:48
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 20; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:50
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 22; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:54
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:57
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 4; Chan ID: 7 8 9 10 11 12 13 14 15 16 17 18 19 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:36:58
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:37:01
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:37:05
Sat Nov 20 2021                 Warning (5)             MDD message timeout;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:37:07
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 20; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        14:37:31
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 4; Chan ID: 7 8 9 10 11 12 13 14 15 16 17 18 19 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;

Log 2:

Event Log
   Event Log

        Time            Priority                Description
        21:56:03
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        21:56:24
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        21:56:33
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        21:56:41
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        21:57:26
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        21:57:29
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 2.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        21:57:42
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        21:59:44
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:03:42
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:03:55
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:05:41
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:06:15
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:06:31
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:08:56
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:09:21
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:09:47
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:10:02
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:10:50
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:10:57
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:11:06
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:11:13
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:11:24
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:11:29
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:11:31
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:13:40
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:13:48
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 2.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:13:51
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:14:02
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:14:02
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:15:58
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:21:14
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 24; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;
        22:21:24
Sat Nov 20 2021                 Notice (6)              CM-STATUS message sent. Event Type Code: 16; Chan ID: 31; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 0 1 2 3.;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.1;