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Q191192: Cannot Change Password with DUN 1.2b and 128-Bit Encryption

Article: Q191192
Product(s): Microsoft Windows 95.x Retail Product
Version(s): Win2000:95
Operating System(s): 
Keyword(s): kberrmsg dun win95 kbDialUp
Last Modified: 28-JUL-2001

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The information in this article applies to:

- Microsoft Windows 95 
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SYMPTOMS
========

If a new account logs on using the Point-to-Point Tunneling protocol (PPTP) and
the Change Password On First Logon option is enabled, the user is prompted to
change the password. During the password change, however, error message -629 is
generated and the PPTP connection is dropped.

The following entry appears in the system log on the PPTP server:

  Error 741: The local computer does not support the required encryption type.

Note that this behavior occurs only if 128-bit encryption is being used.

CAUSE
=====

This behavior occurs because the Dial-Up Networking (DUN) 1.2b client does not
use the correct hashing to encrypt the password.


STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft Dial-Up Networking
1.2b client. To resolve this issue, upgrade to DUN 1.3.

Additional query words:

======================================================================
Keywords          : kberrmsg dun win95 kbDialUp 
Technology        : kbWin95search kbZNotKeyword3
Version           : Win2000:95
Issue type        : kbprb

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