Re: Domains blocked by xFi Advanced Security - How to elevate support?

I am also having this issue.  I am launching a website and can't access my hosting company's portal.  Blocked.  This happened one day when I was having tech issues and couldn't login.  I figured it was blocked for that and should be able to work that out.  Nope. I was on the phone for a long time with the hosting company and it was determined that it was a Comcast/Xfinity issue.  Went through the level I dance and spent over an hour with the Level II tech. They had no idea why it was happening.  Xfi Advanced disabled. I am supposedly on no block lists (other than the Spamhaus PBL that every Comcast residential customer is on).  I can hit the site from other places, just not my home.

Frustrated.   I am to start working on this website this week from home due to COVID.

Anyone have any other ideas (besides the already great ideas that were tried above)?