Using CM1200 modem with Spectrum Gigabit now frequent loss of connectivity

I have been using this modem with gigabit service from Spectrum and an Amplifi Alien wireless router for several months without problem. Now suddenly, I am randomly dropping speed, dropping connections and having to reboot. These are the errors that I am getting. I can't seem to track down the cause. I believe that it is on the Spectrum side, but they of course claim that it is the Modem. Any help would be appreciated. Thanks, Mike Thu Mar 26 20:04:42 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:55:19 2020 Notice (6) CM-STATUS message sent. Event Type Code: 24; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1.;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:54:13 2020 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2.;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:53:59 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:53:03 2020 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:52:11 2020 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:49:53 2020 Notice (6) CM-STATUS message sent. Event Type Code: 16; Chan ID: 25; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:49:28 2020 Notice (6) DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2.;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:49:27 2020 Critical (3) REG RSP not received;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:49:19 2020 Error (4) Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1; Thu Mar 26 19:49:19 2020 Error (4) Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=28:80:88:b2:85:d0;CMTS-MAC=00:01:5c:65:8a:49;CM-QOS=1.1;CM-VER=3.1;