Microsoft KB Archive/146815

= Using Internet Information Server with Windows NT Authentication =

Article ID: 146815

Article Last Modified on 11/3/2003

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APPLIES TO


 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q146815



SYMPTOMS
When connecting to a Windows NT Internet Information Server (IIS), you receive one of the following error messages:

From Windows NT Internet Explorer 1.5:

Authentication is required for this document. The server did not specify a supported authentication method.

From Windows 95 Internet Explorer 2.0:

Error: Access is Denied.



CAUSE
Your Internet browser software does not support the Windows NT Challenge/Response password authentication and this option is enabled on the computer running IIS.

NOTE: This is not the default authentication method for IIS.



RESOLUTION
There are 2 methods to resolve this issue:


 * 1) Upgrade your client software to a version that supports Windows NT Challenge/Response password authentication. IIS ships with a version of Internet Explorer for Windows 95 that supports this method of authentication.
 * 2) Change the password authentication on the IIS computer to either Allow Anonymous or Basic (clear text).

Additional query words: prodnt chap errmsg

Keywords: kbnetwork KB146815

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