Losing connection Intermittently CAX80

You have a ton of correct and un-correctables that should be all zero's across the channels. 

All Criticals, Errors and Warnings needs to be reviewed by the ISP and resolved. These indicate issues on the signal cable line.

Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
Be sure your using good quality RG6 coax cable up to the modem. 
Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
Be sure to power OFF the modem for 1 minute then back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html

Thank you for look it. Since the modem is one they provided, they are not going to trouble shoot the hardware. COX already told me this. I really have no faith in those technicians' actual tech knowledge. It will be interesting to see who comes and what the technician says/does. So, there is a good chance I will have to do it on my own eventually. Is there documentation or a support video I can follow to correct the items you mentioned?