Article ID: 191854 - View products that this article applies to.
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When you attempt to connect your Windows 2000-based computer by using Remote Access Server (RAS) to a Windows NT Server 4.0-based computer that uses Routing and Remote Access Service Update (RRAS), you may receive error messages.
The Windows 2000-based computer displays the following error message when it cannot establish a connection:
Error 691: Access denied because username and/or password is invalid on the domain.
The Windows NT Server 4.0-based computer logs the following error messages in the system log:
Event ID: 20014
Description: The user %Name% has connected and failed to authenticate on port %Name%. The line has been disconnected.
Event ID: 20049
Description: The user connected to port %Name% has been disconnected due to an authentication timeout.
To resolve this issue, obtain the latest service pack for Windows NT version 4.0. For additional information, see the following article or articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/152734/EN-US/ )How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 4.
For additional information about the RRAS and PPTP upgrades, please see the following article(s) in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/189594/EN-US/ )RRAS Upgrade for WinNT Server 4.0 Hotfix Pack 3.0 Release Notes
(http://support.microsoft.com/kb/189595/EN-US/ )PPTP Performance & Security Upgrade for WinNT 4.0 Release Notes
Article ID: 191854 - Last Review: February 21, 2014 - Revision: 2.1