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: 

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

Additional query words: 95
Keywords : dun win95 kberrmsg kbfile kbnetwork
Version : 95
Platform : WINDOWS

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Last reviewed: January 9, 1998
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