How do I configure IIS Web authentication?

Follow the steps below to configure IIS user authentication access:

Table of Contents

Step 1: Click to Open IIS Manager.
Step 2: Click on the Directory Security or on the File Security.
Step 3: Go To the Authentication and Access Control Section.
Step 4: Finish The Configuration By Clicking Okay.

How do I disable anonymous authentication in IIS?

Procedure

In the Internet Information Services (IIS) Manager console, under Connections, expand Sites, and select the IBM® Cognos website.
To disable anonymous authentication and negotiate Kerberos, on the home page, under IIS, double-click Authentication, right-click Anonymous Authentication, and click Disabled.

How do I verify anonymous authentication in IIS?

Go to Administrative Tools and open Internet Information Services (IIS). In the Internet Information Services dialog box, expand local computer ► Sites, and click Default Website. Double-click Authentication. Click Anonymous Authentication and make sure it is enabled.

How do you fix the remote server returned an error 401 unauthorized?

Resolution. The reason this error is appearing is because the user and/or ASP.NET user account does not have authority to access a file on the web server. You can fix it by doing the following: Anonymous access may need to be added to the web application or at least some subfolders within the application.

Why do I get 401 unauthorized?

The 401 (Unauthorized) status code indicates that the request has not been applied because it lacks valid authentication credentials for the target resource. The server generating a 401 response MUST send a WWW-Authenticate header field containing at least one challenge applicable to the target resource.

How do I fix the 401 unauthorized error in Sharepoint 2013?

If the issue still exists, please try follows:

Clear the browser cache and history to compare the result.
Use inprivate browsing in IE to access the site.
Try other users.
Enable anonymous access in other sites then test again.