Comcast home page "sign in"

Greetings to the Forum,

When I power up my computer, the Comcast home screen appears like normal, and my name appears in the right upper corner showing I'm signed in.  However, every time I do a search of any topic and go back to the Comcast homepage, my name is replaced with "SIGN IN".  I sign in and we do this everytime I leave the homepage. I can fix it by refreshing the homepage, but, this is starting to get old fast.  Any one have a suggestion on how to get this issue back to normal.  Once you sign in, you stay signed in...   Mick 7