Microsoft KB Archive/259698

= Windows 2000 Cannot Connect to Windows NT 4.0 Server with SMB Signing Enabled =

PSS ID Number: 259698

Article Last Modified on 11/13/2003

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The information in this article applies to:


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional

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This article was previously published under Q259698



SYMPTOMS
If a Microsoft Windows NT 4.0-based server has support for Server Message Block (SMB) signing turned on, a Windows 2000-based client may have problems connecting to it. If the initial attempt to connect is made with an invalid password, the error message &quot;Network name is no longer available&quot; is returned rather than a prompt to enter the correct password.



CAUSE
The redirector in Windows 2000 returns an incorrect error code if an attempt to connect to a server with SMB signing turned on does not succeed. The cause of this problem is on the Windows 2000-based client, not the Windows NT 4.0-based server.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:   Date        Time               Size     File name --  05/11/2000  22:15              368,848  Mrxsmb.sys 05/11/2000 22:15              130,608  Rdbss.sys



WORKAROUND
Possible workarounds for this problem:
 * Turn off SMB signing on the Windows NT 4.00-based server.
 * Ensure that a valid password is supplied on the initial attempt to connect to the server.
 * Disable &quot;Digitally sign client communication&quot; (when possible) in the local policy of the computer.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.



MORE INFORMATION
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Keywords: kbbug kbfix kbWin2000PreSP2Fix KB259698

Technology: kbwin2000AdvServ kbwin2000AdvServSearch kbwin2000Pro kbwin2000ProSearch kbwin2000Search kbwin2000Serv kbwin2000ServSearch kbWinAdvServSearch

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