Request redirect to /Account/Login?ReturnUrl=/ since MVC 3 install on server

Question

We have an internal ASP.NET Webforms application running on a Windows 2008/IIS7 server which has been running fine until we installed MVC3.

Now any requests redirect

Answer 1

Be ware with this:

RegisterGlobalFilters(GlobalFilterCollection filters) {
  filters.Add(new System.Web.Mvc.AuthorizeAttribute());
}

Answer 2

My solution was to add the tag

[AllowAnonymous]

over my GET request for the Register page. It was originally missing from the code I was mantaining!

Answer 3

It's resolved the IIS request auto redirect to default page(default.aspx or login page)

By adding the following lines to the AppSettings section of my web.config file:

<add key="autoFormsAuthentication" value="false" />
<add key="enableSimpleMembership" value="false"/>

Answer 4

After 4 hours, of trying everything... Windows 2008 R2 the files were green in Window Explorer. The files were marked for encryption and arching that came from the zip file. unchecking those options in the file property fixed the issue for me.

Answer 5

If nothing works then add authentication mode="Windows" in your system.web attribute in your Web.Config file. hope it will work for you.

Answer 6

Similar setup, identical problem. Some installations would work, but most would start redirecting (http 302) to /Account/Login?ReturnUrl=%2f after a successful login, even though we're not using Forms Authentication. In my case after trying everything else, the solution was to switch the Application Pool Managed Pipeline Mode from from Integrated to Classic, which cleared up the problem immediately.