I would like to block the home page of the site so users are redirected to the login page ...

this site is an intranet, so I only want folks who have had account created by the administrator to be able to access. It's pretty much working, but not great. right now, when someone goes to the home page they see some old posts and the header. for any other page, they are redirected to the login page (which is a TML page). I have a URL group set up for the home page and set as a negative rule for those without access, but doesn't seem to be working?