LDN - Luminis Developer Network

We are having a problem with students that are getting an access denied error message in Luminis. The accounts work fine when they are on campus, but when they are at home they are getting this error when trying to click on Annoucements, Email, MyCourses, etc. We have tried having them turn off the Windows Firewall, making the site trusted, turning off pop-up blocker. We have also had them try using Mozilla Firefox. None of the above has fixed the problem. Anyone have a clue to what else to try?