Safari V14 on a Mac will not load my Comcast.net home page anymore but other sites working

Since the update for Safari to version 14.0 it will not load comcast.net as my home page. It just starts to load but progress bar freezes. I have a strong wifi connection with the router near the computer and other sites will open. My home page hasn't changed in preferences and Firefox will work fine.

iMac using MacOS Catalina 10.15.6