Internet Issue Years Later Still Happening

I am using the panoramic modem that cox provides. In response to my email they set up an in home visit with a tech at 3pm again and of course that tech says that nothing is wrong with my internet. the issue really peaks at 8-9 pm. I would like to have a tap or some sort of monitor to show the amount of packet loss and disconnections I get after hours when the traffic is high. Cox, this issue is not resolved and I would like to aggressively ask for help again. I have wasted so much time with techs, forum posts, maintenance technicians, and phone calls. Please assign a high level technician to investigate this issue that has been constant for years. I HAVE NEIGHBORS WHO GET THE SAME EXACT CONNECTION ISSUES AT THE SAME EXACT SECONDS THAT I GET THEM. THERE IS SOMETHING WRONG IN MY NEIGHBORHOOD AT NIGHT. I AM BEGGING TO PLEASE HELP WITH THIS ISSUE!