Article ID: 839027 - Last Review: August 29, 2007 - Revision: 3.1

Programs may fail when they access data on a computer that is running Windows Server 2003 or Windows XP

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SYMPTOMS

Consider this scenario: You have a client computer that is running Microsoft Windows XP and a server that is running Microsoft Windows Server 2003. Programs that access data files on the client or on the server and that perform byte range locking operations may fail because of a connectivity problem. You may receive an error message that is similar to the following:

Error 64: The specified network name is no longer available.

The error message may vary with the program.

A Network Monitor trace shows the following traffic between the client and the server:

Netmon Trace:

FRAME  SOURCE  DEST         DESCRIPTION

23263  XPCLNT  SERVER  TCP  Control Bits: .A...., len:    0, seq:2368164228-2368164228, ack: 105099674
23264  XPCLNT  SERVER  SMB  C lock & X, FID = 0x4009, Unlocks = 1 (0x4043B403 for 0x00000001) 
23265  SERVER  XPCLNT  SMB  R lock & X  IP
23266  XPCLNT  SERVER  TCP  Control Bits: .A...., len:    0, seq:2368164303-2368164303, ack: 105099717
23267  XPCLNT  SERVER  SMB  C lock & X, FID = 0x4009, Locks = 1 (0x4043B403 for 0x00000001
23268  SERVER  XPCLNT  SMB  R lock & X - NT error, System, Error, Code = (860) Unknown
23269  XPCLNT  SERVER  SMB  C session setup & X  
23270  SERVER  XPCLNT  SMB  R session setup & X  
23271  XPCLNT  SERVER  SMB  C make directory  
23272  SERVER  XPCLNT  TCP  Control Bits: .A...., len:    0, seq: 105100041-105100041, ack:2368165900,
23273  XPCLNT  SERVER  SMB  C read & X, FID = 0x8, Read 0x200 at 0x00000E00

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RESOLUTION

Service pack information

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

322389 (http://support.microsoft.com/kb/322389/EN-US/ ) How to obtain the latest Windows XP service pack

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Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

File information

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

   Date         Time   Version            Size    File name
   ---------------------------------------------------------
   30-Mar-2004  02:12  5.1.2600.1500      92,160  Cscdll.dll       
   30-Mar-2004  02:02  5.1.2600.1500     420,608  Mrxsmb.sys
   30-Mar-2004  02:01  5.1.2600.1500     166,016  Rdbss.sys

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.

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