Streaming capability stops at 10 PM

I think I want to cancel my service because I can’t get through to a live person to resolve my issue. I noticed that every time I am watching shows on Netflix or Apple TV on my Samsung 2022 smart TV that the streaming capability goes way down or stops completely around 10 PM. I can’t get through to anyone at any time of day let alone at 10 PM to resolve this issue through troubleshooting. I tried using the AI troubleshooting and it keeps sending me to things that aren’t helpful. I want to speak to a live person to help me resolve this issue. I don’t know if it’s a issue with the speed which is supposed to be fast enough to run eight devices at a time and I’m only trying to use one at a time. I don’t know if it’s something that Comcast does with the speed at 10 PM that makes it impossible to continue watching my shows at that time. I have tried restarting the modem, but it doesn’t seem like I should have to do that every night and it doesn’t always resolve the issue for more than a day. My bill is about to go up and I would like to have this resolved before agreeing to pay more for this kind of subpar service.