My Xfinity Internet Cuts out

I have suffered for several years, with short term internet loss. By the time I activate the Xfinity Chat AI, the Internet is back at full speed and nothing appears wrong in all the tests The AI chat robot does.

Finally on February 24, I activated the chat AI quickly enough for it to detect a problem and triggered a service person for February 26.  Of course when the service person arrived everything was running well. He checked a few things and said everything is fine and left.

Subsequent to that I once again caught a failure with the Chat AI and it offered to send another service person but I resisted thinking it would be similar waste of my time.

finally the failures occurred so often 2 to 4 times per day on March 18 I caught a failure with the Chat AI and accepted its offer, and another service person arrived on the 19th of March. this one was actually willing to do something. He first, wanted to change my incoming line, but, i convinced him to check the input signal where the feed comes out of the ground. His device detected an unstable signal, and he contacted his office to inform them. then they managed from the office to improve the signal to the point where it showed strong and steady on his monitoring device.  The office said they would monitor it for a couple of weeks. I asked him who to contact after that time and he gave me his telephone Number.

For the next two weeks I only had 1 failure per week.

This is six weeks later, I get 2 (two) to 4(four) failures per day, at random times with some failures clustering around 10:00A.M. and some between 1:30 A.M. and 6:30 A.M. I summarize them and send them by text to the last tech that left me his number. I have received no answer from him (He was an out of state loaner to the area).

These failures are totally disruptive and I have no idea what my next steps should be. I have asked prior if there was anyway to monitor the signal before it goes through my equipment cable line and connections. the answer was "No".

I have another internet provider at my northern locations, might get a signal input failure once or twice per year.