How do I resolve 401 unauthorized error in IIS?

How do I resolve 401 unauthorized error in IIS?

8 Answers

1. Open IIS and select site that is causing 401.
2. Select Authentication property in IIS Header.
3. Select Anonymous Authentication.
4. Right click on it, select Edit and choose Application pool identity.
5. Restart site and it should work.

How do I fix 401 authorization required error?

How Do I Fix a 401 Unauthorized Error?

1. Check the URL.
2. Clean your firewall and browser cache.
3. Log out and log in again.
4. Disable your plugins or theme.
5. Flush your DNS records.
6. Reload the page.
7. Check with your hosting provider.

How do I enable basic authentication in IIS?

How do I create a user account for basic authentication?

1. Open IIS Manager and navigate to the level you want to manage.
2. In Features View, double-click Authentication.
3. On the Authentication page, select Basic Authentication.
4. In the Actions pane, click Enable to use Basic authentication with the default settings.

What does HTTP 401 error code stands for?

Unauthorized
The HyperText Transfer Protocol (HTTP) 401 Unauthorized response status code indicates that the client request has not been completed because it lacks valid authentication credentials for the requested resource.

How do I get rid of basic authentication in IIS?

To Disable Basic Authentication in Microsoft IIS 5.0 Server

1. Start the Internet Services Manager.
2. Right click the web site that is protected by the agent.
3. Select Properties from the drop-down list.
4. Select Directory Security.
5. Select Edit in Authentication and access control.
6. Uncheck the Basic Authentication box.

How do I enable basic authentication in PowerShell?

The AllowBasicAuthPowerShell switch specifies whether to allow Basic authentication with PowerShell.

1. To allow Basic authentication for the protocol, use this switch without a value.
2. To block Basic authentication for the protocol, use this exact syntax: -AllowBasicAuthPowershell:$false.

Why am I getting an IIS 4011 response in Internet Explorer?

This behavior is by design. The 401.1 response will occur if the web browser’s first request that’s sent to the IIS application contains one of the following headers: There are many reasons a user may be prompted for credentials in Internet Explorer that are outside the scope of this article.

Why am I getting a pre-authentication header for 4011 in Internet Explorer?

This article resolves the problem where an unexpected 401.1 status is returned with Pre-Authentication headers. It occurs when you use Internet Explorer to browser to a web application hosted on Internet Information Services (IIS).

Why is the HTTP 401 error message displayed in the browser window?

Or, the HTTP 401.1 error message may be displayed in the browser window. This behavior is by design. The 401.1 response will occur if the web browser’s first request that’s sent to the IIS application contains one of the following headers:

Can I use basic authentication with Internet Information Services (IIS)?

Consider the following scenario: You have Internet Information Services (IIS) 7.0 or 7.5 installed on a computer that is running Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2. You configure authentication settings for a Web site in IIS to only use Basic authentication.