Event ID - 20049

Event Id20049
SourceRouter
DescriptionThe user connected to port %Name% has been disconnected due to an authentication timeout.
Event InformationWhen 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: 

Retrying authentication... 

Error 691: Access denied because username and/or password is invalid on the domain;
The Windows NT Server 4.0-based computer logs this error message in the system log along with event 20014.
RESOLUTION:
To resolve this issue, obtain the latest service pack for Windows NT version 4.0.
Reference Links RAS Authentication Does Not Work Connecting to RRAS Server

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