Problem with asp.net forms authentication in internet explorer

Question

My company has a web application hosted on a client\'s machine that uses forms authentication in ASP.net. When visiting the website http://www.client.com/Application and tr

Answer 1

Speaking of IIS, have you checked the authentication method that IIS is trying to use on the site instance? I believe Firefox will convince IIS to use "basic" authentication, while IE would try to use its fancy Windows authentication, etc.

Also, do you have the site's IP/hostname specified in the HOSTS file? That might make a difference one way or another (sometimes good, sometimes bad).