I have tried everything that was suggested on the Norton Forum clear back to 2010 and everything suggested by Apple Support. I have done everything I know. I do know that when I turn off the NIS Firewall, the iTunes Store opens and is accessible so it is a setting on my computer. I have tested with another user and the same thing happens. I am at a loss. Pulling my hair and I don't have much left...a little humor remains entact. Please help!
Mur