Re: IIS 6 - UNC - 401.1 - Access is denied due to invalid credentials

From: David Wang [Msft] (
Date: 11/23/03

  • Next message: John Smith: "server 2003 ASPNET and DC"
    Date: Sun, 23 Nov 2003 03:06:56 -0800

    What authentication type did you enable on the UNC vdir?

    401.1 implies that IIS failed to obtain the user token via LogonUser --
    usually due to incorrect username/password. If it's anonymous -- check that
    the anonymous account is synchronized between the metabase and SAM/AD.

    Have you looked at:

    This posting is provided "AS IS" with no warranties, and confers no rights.
    <> wrote in message
    Forgot to tell, UNC mapping is used to access the share:
    \\nas01\share\web\root\clientname\html indicating no
    username nor password, leaving "Always use the
    authenticated user's credentials when validating access to
    the network directory." checked.
    The not password protected area is working well, just the
    password protected directory is not working
    (file permissions are the same as the local website)
    Any ideas?
    thanks in advance,
    >-----Original Message-----
    >I've setup a Windows 2003 Standard Server as PDC with IIS
    >and a NAS (Dell PV 725) with Windows Powered 2000 Server.
    >A simple website (IUSR read-only, client R/W) with a
    >password protected directory for the website statistics
    >(no IUSR, client read-only).
    >This situation hosted locally on the W2K3 IIS Server
    >fine, but results in a problem when is situated on the
    >NAS; the client cannot view the protected directory
    >through http, username & password are not accepted
    >resulting in a "HTTP Error 401.1 - Unauthorized: Access
    >denied due to invalid credentials. Internet Information
    >Services (IIS)" error.
    >FTP access for this user is working fine (R/W to his
    >website, read-only for the password protected directory).
    >What can be wrong here?

  • Next message: John Smith: "server 2003 ASPNET and DC"