T3 and T4 errors causing internet connectivity problems for a week now

Greetings. I work from home and rely on a stable internet connection to address technical issues for universities in and outside of the U.S. This last week my xfinity internet has been going down every 5-10 minutes, also presenting an issue for the users I support. My modem logs show many T3 and T4 timeout errors. Xfinity dispatched someone to our home yesterday and they replaced the coax and connectors that run to our home. We didn't have any issues for an hour and then the T3 and T4 errors started raging again. The tech that came to our home told me that if the issue persists, it is likely a problem with my modem or inside wiring. I've replaced the ethernet cable from the modem to the router, I've ensured no kinks are present in the coax that runs to the modem and that it is securely fastened, I've powercycled my modem, router, and computers, I have reset the modem and router to factory defaults, and I've re-provisioned the router. After reading countless xfinity customer experiences regarding the same issue, in most cases the issue originates from the provider's equipment/wiring. I know it's a holiday weekend and we will probably not see anyone address this now, but it would be nice if xfinity could have someone look into their equipment and wiring as soon as possible. Here's a screenshot of my modem logs: