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Microsoft KB Archive/102791

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Knowledge Base

LAN Manager FTP Clients Require a Password

PSS ID Number: 102791

Article Last Modified on 10/29/2003

The information in this article applies to:

  • Microsoft Windows NT Server 3.1
  • Microsoft Windows NT Workstation 3.1

This article was previously published under Q102791


Microsoft LAN Manager file transfer protocol (FTP) clients may not be allowed to establish a session with a Windows NT FTP server even though they have a valid user account on the Windows NT machine.


LAN Manager FTP clients that use the TCP/IP Utilities for LAN Manager require a password to attempt to establish a session with an FTP server.

Even if a blank password is valid for the Windows NT user account, such as the Guest account, the LAN Manager FTP Client will not be able to establish a session.


To work around this problem, use the User Manager to add a password (which is not blank) to any user account that will be establishing a session with the FTP Server.

To modify or add a Password to an existing account, in the User Manager, highlight the appropriate account, select User, choose Properties, and enter a password in the two Password fields.

It is also possible to configure Windows NT to require a password for all user accounts. To configure Windows NT to require passwords, in User Manager, select Policies, choose Account Policy, and change the Minimum Password Length option to 1 character or more.

Windows NT FTP clients do not require a password with their account to establish a session with a Windows NT FTP server.

Additional query words: prodnt

Keywords: kbnetwork KB102791
Technology: kbWinNT310Search kbWinNTS310 kbWinNTS310search kbWinNTsearch kbWinNTSsearch kbWinNTW310 kbWinNTW310Search kbWinNTWsearch