Tonteen73 said:
When I log out of my Comcast acct. The same message comes up "Cannot reach this page" "Search" for what you want. Doing this all Comcast web pages I cannot open.
Probably coincidence. Comcast appear to be suffering from server outages at present.

2 October:
Problems at Comcast
Comcast is having issues since 2:11 AM EDT
http://downdetector.com/status/comcast-xfinity