You Receive a "System Error 1230" Error Message When You Browse the Network (318332)


The information in this article applies to:

  • Microsoft Windows 2000 Professional
  • Microsoft Windows XP Home Edition
  • Microsoft Windows XP Professional
  • Microsoft Small Business Server 2000
This article was previously published under Q318332

SYMPTOMS

When you browse the network by using My Network Places or by typing net view at a command prompt, you may receive the following error message:
System Error 1230 has occurred.

An invalid operation was attempted on an active network connection.

CAUSE

This error message may occur in a single-server environment where one Windows 2000-based server functions as a file server, a print server, and the browse master for the network. The error message may occur if a direct host (port 445) connection from a client exists with a pending Server Message Block (SMB) transaction. When the Computer Browser service tries to connect to the same server (because the server is also the browse master) by using NetBIOS over TCP/IP (port 139), a conflict occurs.

RESOLUTION

Service Pack Information

Windows XP

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

322389 How to Obtain the Latest Windows XP Service Pack

Windows 2000

To resolve this problem, obtain the latest service pack for Microsoft 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

Hotfix Information

The English version of this fix should have the following file attributes or later:

Windows XP
   Date            Version        Size           File name     
   ----------------------------------------------------------
   10-June-2002    5.1.2600.47    48,640 bytes   Browser.dll
   10-June-2002    5.1.2600.47    305,152 bytes  Netapi32.dll
Windows 2000
   Date            Version        Size           File name   
   ----------------------------------------------------------
   26-July-2002    5.0.2195.5855  49,424 bytes   Browser.dll   
   26-July-2002    5.0.2195.5979  307,472 bytes  Netapi32.dll

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 XP Service Pack 1. This problem was first corrected in Windows 2000 Service Pack 4.
Modification Type:MinorLast Reviewed:9/30/2005
Keywords:kbHotfixServer kbQFE kbDirServices kberrmsg kbfix kbOSWin2000fix kbprb kbWin2000preSP4Fix kbWinXPsp1fix KB318332
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