That's almost always a description of caching. The page is cached, so the non-logged in view is shown. Please disable caching in the Joomla - Global Configuration area or any 3rd party caching extensions you have installed. Also, look for the System - Cache or System - Page Cache plugin and try disabling them to see if that helps. If so, we should be able to help you get them going again.But on the new site I can't login without www but with www it tries to log in but when page refreshes I'm not logged in.
Join our newsletter to get alerts for Joomla releases, tips and tricks and extension updates.