I_USR requires Logon type 3 - Help!

From: sechead (sechead_at_yahoo.com)
Date: 06/13/04 

Date: Sun, 13 Jun 2004 23:09:18 +0300

Problem:

When IUSR tries to logon to the FTP server, the attempt is unsuccessful.
Errors are logged in the Event Viewer Security and System logs.

Configuration:

    Windows XP Pro
    Service Pack 2 beta
    IIS 5.1
    IIS Lockdown
    Local Security Settings -> User Rights Assignment:
        Access this computer from the network -> Authernticated Users,
IUSR_Computer1, IWAM_Computer1, Administrators

Security Log:

Source: Security Category: Logon/Logoff
Type: Failure Audit Event ID 533
User NT Authority\System

Description:
 Logon Failure:
 Reason: User not allowed to logon at this computer
 User Name: IUSR_Computer1
 Domain: PEACE
 Logon Type: 3
 Logon Process: IIS
 Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
 Workstation Name: Computer1

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

System Log:

Source: MSFTPSVC Category: None
Type Warning Event ID:100
User: N/A

Description:
The server was unable to logon the Windows NT account 'IUSR_Computer1' due
to the following error: Logon failure: user not allowed to log on to this
computer. The data is the error code.
For additional information specific to this message please visit the
Microsoft Online Support site located at:
http://www.microsoft.com/contentredirect.asp.

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

Thank you for your help.

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