I have an MVC site running on IIS 10. The IIS server and our users are all on the same domain. My question: is there a way for the MVC website to determine the domain user without having the login prompt appear when accessing the website? I turned on Windows Authentication - this causes the login prompt, but it does give me the domain user. The Allow Anonymous returns the IISUSR account. I'd like to access the domain user, but not have the login prompt appear. Thanks in advance.