I've noticed that when I try to import an Active Directory Group within Tableau Server that not all the groups within Active Directory are available. Is this due to the way the group was set up within AD?
Based on an article about Windows Server, http://technet.microsoft.com/en-us/library/cc781446(v=ws.10).aspx, you can grant rights to Security Groups but not Distribution Groups. Does Tableau Server make the distinction between the two types of groups and only shows the "Security" groups?
In my use of Tableau Server, it does appear that Tableau only recognizes AD Security Groups, not email distribution groups.