sb8200 modem docsis 3.1 help

I have a arris sb8200 modem docsis 3.1. I have 32 downstream channels and 3 upstream channels. Can anyone help me with all these critical errors showing up in my modem event log. 11-30-2018, 20:40:0 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:43 Notice(6) "Honoring MDD; IP provisioning mode = IPv6" 1-1-1970, 0:0:38 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-27-2018, 15:13:0 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:37 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-27-2018, 14:55:57 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-25-2018, 17:4:25 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:37 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-25-2018, 15:38:41 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:39 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-24-2018, 10:54:7 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:38 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-23-2018, 12:23:48 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:36 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:39 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-21-2018, 17:6:46 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:39 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-21-2018, 15:14:11 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:37 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-21-2018, 4:43:13 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-21-2018, 4:41:55 Critical(3) "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 11-21-2018, 4:41:49 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 11-21-2018, 4:41:2 Critical(3) "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 11-21-2018, 4:41:1 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 11-21-2018, 4:41:0 Critical(3) "Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 11-19-2018, 9:49:0 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:37 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-12-2018, 10:26:17 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:38 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:37 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-11-2018, 13:42:0 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-5-2018, 6:23:43 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:37 Critical(3) "No Ranging Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:33 Critical(3) "SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;" 11-1-2018, 8:25:41 Critical(3) "Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:95:69:fc:25:0d;CMTS-MAC=00:01:5c:83:a4:5a;CM-QOS=1.1;CM-VER=3.1;" 1-1-1970, 0:0:36