Neighborhood glitches and outtages

Our entire neighborhood's internet with Xfinity resets 3-4 times a day. Not just a couple houses, the entire 30+ residents. We talk about it at HOA meetings, while walking the dog and seeing others etc. We get dropped off important Teams/Zoom calls, have TV shows pause and buffer as well as dropped calls who require cell phone boosters connected to the net. This has been going on for two years and has gotten considerably worse. We have let Xfinity know and they don't do anything about it. AT&T just came in and laid fiber and after being a 22 year customer with Xfinity, I cannot wait to jump ship, and same with the whole street!