CurrentPrincipal.Identity.Name is blank

Question

I'm trying to use System.Threading.Thread.CurrentPrincipal.Identity.Name to get the login of who is using an ASP.NET application. I'm not getting any build errors, but it returns a blank value. I'm using IIS 6 and here are my authentication settings:

• Anonymous Authentication: Disabled
• ASP.NET Impersonation: Disabled
• Basic Authentication: Enabled
• Windows Authentication: Enabled

I have no authorization settings in my Web.config file either. Here is the method I am using to try to get the login:

    public void SetUser()
    {
       string login = System.Threading.Thread.CurrentPrincipal.Identity.Name;
    }

I have a breakpoint to check the value and it says login = "" .

How can I get the login?

EDIT

Here is my authentication picture:

Answer 1

Thread.CurrentPrincipal = new WindowsPrincipal(WindowsIdentity.GetCurrent());

Worked for me. I was having the same problem.

Answer 2

I was able to fix it. In my project properties, I was using IIS express so my application wasn't hitting my actual IIS. I unchecked that, created a virtual directory and disabled all authentication except Windows Authentication and it works now.