SYMPTOMS
After you connect to a server from a Microsoft Windows NT 4.0-based client computer and then create a mapped drive to a password-protected shared folder, if you try to create a mapped drive a second time, you receive an error message that is similar to the following:
System Error 1312 occurred. A specified logon session does not exist. It may already have been terminated.
This problem occurs if the server is an IBM AIX-based server that is running AIX Fast Connect.
RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the
Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
-----------------------------------------------------
23-Oct-2003 04:19 4.0.1381.7237 266,256 Rdr.sys
Note Because of file dependencies, this hotfix requires Microsoft Windows NT 4.0 Service Pack 6a.