Password Case Sensitivity and System Error 1219

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Article ID: 98724 - View products that this article applies to.
This article was previously published under Q98724
Password validation in a Windows NT network is case-sensitive as long as the machine you are logged onto and the machine whose resource you are trying to access are both Windows NT machines; the case of the password entered and the password stored in the Windows NT user database must match. However, if a logon procedure takes place on a non-Windows NT machine (a Windows for Workgroups machine, for example) or the share being accessed is on a non-Windows NT server (even if the server is in a Windows NT domain), password validation becomes case- insensitive. There is one exception to these rules and one error that results from mismatched case in passwords.

The exception is that if you change your password from a non-Windows NT machine (using the Windows NT NET PASSWORD command), Windows NT stores your new password as a case-insensitive password and permits all subsequent log ons to be password case-insensitive. Even if another user logs on from a Windows NT machine, no password case checking is performed.

An error can be generated if you mismatch the case of your password after you've already logged onto a Windows NT domain. For example, if you establish a network session with a Windows NT machine by typing the following two lines
net use x: \\ntmachine\data /u:domain\user PASSWORD net use y: \\ntmachine\apps /u:domain\user password

the following error message is displayed:

System error 1219 has occurred. The credentials supplied conflict with an existing set of credentials.

To avoid this error message, make sure you always use the same case when attempting to connect to shared resources.
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Article ID: 98724 - Last Review: October 31, 2006 - Revision: 1.1
  • Microsoft Windows NT Advanced Server 3.1
  • Microsoft Windows NT Workstation 3.1
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0 Standard Edition
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0 Developer Edition
kbnetwork KB98724

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