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Can't log into a NT4 RAS Server

Posted on 1998-10-27
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Last Modified: 2013-12-23
I seem to be able to log on to a NT4 Server from a
Windows 95 machine but I am not able to have my login
authenticated on the domain which I am trying to log onto.
The NT4 server is a BDC on the domain in question. I am
able to PING any IP address on the subnet onto which I
am connecting so TCP/IP is working as it should.

What is the problem?
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Question by:simonc
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jb123 earned 100 total points
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This is a bug in MS networking when you only have TCP/IP loaded. There is a fix available (an updated file vnbt.386)

I've included the KB Article Q152791 for you to read:

The information in this article applies to:
Microsoft Windows 95
Microsoft Windows 95 OEM Service Release version 2
Microsoft Windows 98


SYMPTOMS
When you attempt to log on to a Microsoft Windows NT domain using only the TCP/IP protocol, the domain controller may not be found, generating the following error message:


   No domain server was available to validate your password.  You
   may not be able to gain access to some network resources.

After this occurs, you cannot log on to the domain until you restart your computer.


CAUSE
This problem can occur when the NetBIOS interface for TCP/IP (VNBT) is unable to allocate a buffer needed while you are logging on. This is more likely to occur in low-memory conditions.



RESOLUTION
This issue is resolved by the following updated file for Windows 95, and later versions of this file:


   VNBT.386  version 4.00.953  dated 6/13/96  95,481 bytes

A version of this file which resolves this problem is included in the Windows Sockets 2.0 update for Windows 95. For information on obtaining this update, see the following article in the Microsoft Knowledge Base:

   ARTICLE-ID: Q182108
   TITLE     : Availability of Windows Sockets 2.0 for Windows 95

STATUS
Microsoft has confirmed this to be a problem in Microsoft Windows 95. An update to address this problem is now available, but is not fully regression tested and should be applied only to computers experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft does not recommend implementing this update at this time. Contact Microsoft Technical Support for additional information about the availability of this update.

This issue is resolved in Microsoft Windows 98.


Good luck.
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by:jb123
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There was also this article that dealt with RAS specifically. Try either one. Q154434

Err Msg: No Domain Server Was Available to Validate...
Last reviewed: October 8, 1998
Article ID: Q154434
 
--------------------------------------------------

The information in this article applies to:
Microsoft Windows 95
Microsoft Windows 95 OEM Service Release versions 1, 2, 2.1


SYMPTOMS
When you use Dial-Up Networking in Windows 95 to dial into a remote network, you may receive the following error message when the remote Microsoft Windows NT server attempts to validate you:


   No domain server was available to validate your logon.

After you receive this error message, the dial-up client may still be attached to the network (but without authentication) and may have access to some resources on the domain. In some cases, connectivity is not established at all.


CAUSE
This error message occurs when the TCP/IP protocol (specifically, Vnbt.386) is not completely bound to the redirector (Vredir) before the logon request occurs. The DOMAINNAME<1ch> name query request is never sent to the WINS server; therefore, the Windows 95 client never finds a domain controller that can validate its logon.

The DOMAINNAME<1ch> request is normally sent by a TCP/IP client to locate domain controllers on the network for the purpose of logging on to the domain.



RESOLUTION
This issue is resolved by the following updated file for Windows 95 and OEM Service Release 1 (OSR1):


   RASAPI32.DLL version 4.0.953 (7/9/96) and later

This file is included in the self-extracting RASUPD.EXE file.
This issue is resolved by the following updated file for Windows 95 OEM Service Release 2 (OSR2) and 2.1:


   RASAPI32.DLL version 4.0.1112 (3/3/97) and later

This file is included in the self-extracting RAS2UPD.EXE file.
The following files are available for download from the Microsoft Software Library:


 ~ Rasupd.exe (size: 179664 bytes)
 ~ Ras2upd.exe (size: 237600 bytes)

For more information about downloading files from the Microsoft Software Library, please see the following article in the Microsoft Knowledge Base:

   ARTICLE-ID: Q119591
   TITLE     : How to Obtain Microsoft Support Files from Online Services

STATUS
This issue is resolved in Microsoft Windows 98.



MORE INFORMATION
This issue is also discussed in the following article in the Microsoft Knowledge Base:


   ARTICLE-ID: Q150053
   TITLE     : Erratic Domain Logon from Windows 95 Dial-Up Networking
 

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by:pgossler
Comment Utility
There is an updated version of RASAPI32.DLL for Windows 95 available "RAS2UPD.EXE 237600 bytes" at the Microsoft WEB page.

I've included the respective article:

Err Msg: No Domain Controller Was Available to Validate...
Last reviewed: January 9, 1998
Article ID: Q154434  
The information in this article applies to:
Microsoft Windows 95
Microsoft Windows 95 OEM Service Release versions 1, 2, 2.1


SYMPTOMS
When you use Dial-Up Networking in Windows 95 to dial into a remote network, you may receive the following error message when the remote Microsoft Windows NT server attempts to validate you:



   No domain controller was available to validate your logon.


After you receive this error message, the dial-up client may still be attached to the network (but without authentication) and may have access to some resources on the domain. In some cases, connectivity is not established at all.


CAUSE
This error message occurs when the TCP/IP protocol (specifically, Vnbt.386) is not completely bound to the redirector (Vredir) before the logon request occurs. The DOMAINNAME<1ch> name query request is never sent to the WINS server; therefore, the Windows 95 client never finds a domain controller that can validate its logon.

The DOMAINNAME<1ch> request is normally sent by a TCP/IP client to locate domain controllers on the network for the purpose of logging on to the domain.



RESOLUTION
This issue is resolved by the following updated file for Windows 95 and OEM Service Release 1 (OSR1):



   RASAPI32.DLL version 4.0.953 (7/9/96) and later


This file is included in the self-extracting RASUPD.EXE file.
This issue is resolved by the following updated file for Windows 95 OEM Service Release 2 (OSR2) and 2.1:



   RASAPI32.DLL version 4.0.1112 (3/3/97) and later


This file is included in the self-extracting RAS2UPD.EXE file.
The following files are available for download from the Microsoft Software Library:



 ~ Rasupd.exe (size: 179664 bytes)
 ~ Ras2upd.exe (size: 237600 bytes)


For more information about downloading files from the Microsoft Software Library, please see the following article in the Microsoft Knowledge Base:


   ARTICLE-ID: Q119591
   TITLE     : How to Obtain Microsoft Support Files from Online Services


MORE INFORMATION
This issue is also discussed in the following article in the Microsoft Knowledge Base:

Regards,

Peter

   ARTICLE-ID: Q150053
   TITLE     : Erratic Domain Logon from Windows 95 Dial-Up Networking

 

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