Sitebuilder not connecting to internet. Error message ; "Internet Connection Required"

Sitebuilder says "Not Connected".  But I am connected to the internet.  The error message says I may have software that prevents Sitebuilder from connecting.  How can I fix this - nothing on Sitebuilder works when it is not connected?  I would like to post which version of Sitebuilder I am using but it won't allow me to view the version.