Community Forum
Start here;
https://forums.xfinity.com/t5/Your-Home-Network/Internet-Troubleshooting-Tips/m-p/3310447#M316652
@Gwenzie wrote: You remind me of the useless Chat Assistant. ...
@EGis not Comcast, and is not responsible for the incompetent way the company's senior managers run the company. He has helped a great many customers overcome that incompetence. It isn't fair for you to blame him for their shortcomings.
https://support.xfinity.com/svp-contact-form may allow you to get a bit closer to those who make the decisions that make Comcast so dreadful.