Internet Service interruptions, have replaced equipment, wires, and had tech out to home

Currently on Cox Gigablast.

Started experiencing connection drops and high latency spikes on both mine and my wife's computer a couple weeks ago. Prior to that everything was fine.

Replaced my modem as a troubleshooting step, problems did not go away. I experience the connection drops and latency spikes even when plugged directly into the modem with a Cat6. I've also tried this on two different computers plugged directly into the modem.

Modem is Netgear CM1000v2, issue also occured on an Arris S33.

Replaced RG6 coax cable to ensure it wasn't a bad connection, no good. Tech came out to apartment, couldn't identify any issue with our connection box outside. Suggested we replace the cabling from box to home. Ran my own RG6 to test, issues persist.

Speaking with Cox support last week it sounds like Cox was doing infrastructure upgrades in this area due to a higher-than-expected capacity. Upgrades were supposedly completed over a week ago.

Here is what my modem control panel looks like after just a few hours of operation:

Not sure what to do at this point, I believe I've hit every possible troubleshooting step that can be done on my side. Any suggestions for how I can go about getting this fixed? At this time I think it's pretty safe to say this is an issue on Cox's end.