Connectivity drops

I have had on and off issues with my business internet connectivity for several months. Technicians have come out on 3 occasions and the last resulted in the discovery of a break in the outside line that had allowed water inside of the cable all the way into the house entrance. The tech replaced the cable from the pole to my modem. The problem seemed to go away for a while but now the issue has returned where the downstream light on my MB8611 modem will blink blue from time to time, usually after rain but not always. This has become quite an issue as uncorrected errors build up and eventually the modem will reboot. The MB8611 was purchased new in Mar as I was having the same problems and even with a new Comcast Modem the issue didn't resolve. Below is a screen shot of the connection screen that shows the errors. I would really love to get this resolved. While the tech that came out last was very helpful I think there is an issue somewhere in the line coming to my house. I am at the end of the line and not sure how many people on my street have Comcast. I am the 6th house down my street.