Internet receiving random disconnects

Hello there. I am here to share a problem that I have been having since October. Apparently my internet disconnects for a few seconds at random times throughout the whole day. It’s really annoying because I am indeed a gamer. Every piece of equipment was swapped out: Router, ONT Box, WAN Cable, *Switched connection from ethernet to COAX*. They even went as far to changing the cables outside towards the wooden pole. It’s very hard for technicians to diagnose this problem because it happens at random times. I have not changed anything in the router settings. I am dealing with a weird unusual problem. Did anyone have this problem yet?