Internet drops frequently

My Internet connection is dropping multiple times per day. It occurs unpredictably but the outages are usually clustered together. It's been happening more often recently, but it's been going on a while.

I have an Arris SB6141 modem and the recent logs are as follows:

Oct 15 2020 15:20:37 	5-Warning 	Z00.0 	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:17 	6-Notice 	N/A 	Cable Modem Reboot due to power reset ;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Oct 15 2020 14:58:38 	5-Warning 	Z00.0 	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:26 	3-Critical 	R02.0 	No Ranging Response received - T3 time-out;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:17 	6-Notice 	N/A 	Cable Modem Reboot due to power reset ;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Oct 12 2020 17:05:23 	5-Warning 	Z00.0 	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:28 	3-Critical 	R02.0 	No Ranging Response received - T3 time-out;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:17 	6-Notice 	N/A 	Cable Modem Reboot due to power reset ;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Oct 12 2020 13:36:04 	3-Critical 	R05.0 	Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Oct 12 2020 13:23:51 	5-Warning 	Z00.0 	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:17 	6-Notice 	N/A 	Cable Modem Reboot due to power reset ;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Oct 12 2020 10:26:14 	5-Warning 	Z00.0 	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:30 	3-Critical 	R02.0 	No Ranging Response received - T3 time-out;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:17 	6-Notice 	N/A 	Cable Modem Reboot due to power reset ;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Oct 11 2020 08:51:31 	5-Warning 	Z00.0 	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:26 	3-Critical 	R02.0 	No Ranging Response received - T3 time-out;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:17 	6-Notice 	N/A 	Cable Modem Reboot due to power reset ;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Oct 11 2020 08:32:57 	5-Warning 	Z00.0 	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:31 	3-Critical 	R02.0 	No Ranging Response received - T3 time-out;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=70:6e:6d:2c:b2:3f;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:17 	6-Notice 	N/A 	Cable Modem Reboot due to power reset ;CM-MAC=04:4e:5a:fd:7e:25;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;

The signal information (currently) is:

EDIT: pasted tables removed; see screenshot at https://imgur.com/a/coP1MrM

Can anyone help me figure out what the problem is here? Is there anything I can do on my end? Do I need to get a Comcast tech to come check the wiring?