I have a webapplication which uses claims based authentication. The STS is ADFS 2.0. When I am in the intranet and use IE, IWA is used and no login dialog appears. When I am on the internet zone, the Forms based authentication of ADFS is used. Just what I want.
Chrome and FireFox are also working as expected when I am in the internet zone. But when I am in the intranet zone, both come with a login dialog, instead of using IWA. And supplying my credentials in that dialog does not work, it keeps repeating the dialog.
UPDATE: Did about an hour searching on the internet before I asked this question. But after asking it I did just another search giving the answer :-), matter of finding the correct keywords. Here the answer: https://stackoverflow.com/questions/5724377/mvc3-site-using-azure-acs-adfs-continually-prompts-for-credentials-when-using