Why does HttpContext.Current.User.Identity.Name return blank

Question

I created a site. It is an internal site. It is a .NET 4.0 site. I would like to grab the username using HttpContext.Current.User.Identity.Name of the person browsing the

Answer 1

In IIS, go to Sites \ Default Website \ [Your Website].

Select Authentication option and disable Anonymous Authentication.

Answer 2

It comes up blank when unauthenticated. You can verify this by also doing:

HttpContext.Current.User.Identity.IsAuthenticated

Check your authentication level in IIS, is it set to enable windows authentication there too?

Answer 3

In iis disable anonymous access and enable integrated windows security for you web application.

Answer 4

Yes, you do need, at least the

<authentication mode="Windows"></authentication>

part is required if you are using Integrated Windows Auth.

After that, you should be able to grab the username of the person logged in.

No, you don't need:

<validation validateIntegratedModeConfiguration="false" />

Answer 5

In my case removing <remove name="FormsAuthentication" /> line from web.config helps.

I also have <authentication mode="Forms" /> in <system.web> section.