CM1200 Modem Loosing Internet Connection

I have an issue where I am being kicked off the internet periodically. I'd say it started towards the end of 2020. It started off minimal, now it is causing a lot of issues with me working from home. 

My modem lights started to flicker (especially the upstream, ocassionaly the downstream lights). When that happened I lost connection to the internet, and it usually took 5-10 min to come back on. This happened a lot. 

I moved my modem and router away from the tv and other elecxtronics to eliminate any disruptances it may cause. Did not seem to help much. I also connected my modem straight to the box line (away from the cable connected to my tv box, with a splitter sending to my modem), but no help there either. 

I talked with Netgear support and they where able to send me a replacement. Right away, I noticed a difference as I got 930MBS down and about 40MBS up (I am paying for 1G service from Xfinity). I used to max out at 700mbs down and 14mbs up with the other modem, so I thought it was the modem. But before I knew, the issue continued. The upstream lights continued to flicker. 

I had an xfinity Tech come and take a look, and I don't know what he did but he did not help my issue. I am still having connectivity issues, and the upstream light still blinks and I loose signal. 

What can I do to fix this?? This is becoming a huge inconvenience and a disruptance to my work as I constantly drop out of calls and etc. It has gotten to the point where I have to connect to my mobile hotspot to get reliable internet....which is absurd!

I will be attaching error logs that I have in my modem. I don't know what they mean, but would appreciate if anyone could tell me what it means so I can tell my ISP what to look for when they come back or take a look on their end. 

Any help would be appreciated, thanks!