Microsoft KB Archive/819777

= FIX: Your datagram socket connection times out when you connect through a VPN in Visual J# .NET =

Article ID: 819777

Article Last Modified on 10/25/2005

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APPLIES TO


 * Microsoft Visual Studio .NET 2003 Enterprise Architect
 * Microsoft Visual Studio .NET 2003 Enterprise Developer
 * Microsoft Visual Studio .NET 2003 Academic Edition

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SYMPTOMS
When you are working in Microsoft Visual J# .NET, and you use a datagram socket to communicate between two computers through a virtual private network (VPN), you may notice that the connection between the two computers times out.



CAUSE
This problem occurs when the computer that requests the datagram socket has multiple local IP addresses, such as when a VPN connection is present. The computer pre-binds the IP address to the socket and then tries to connect to the remote host. If the wrong IP address is selected, the connection cannot be established.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Visual J# .NET Rollup 1.1 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

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 -  08-May-2003  13:07  1.1.4322.904  3,739,648  Vjslib.dll 08-May-2003 05:17  1.1.4322.904    266,240  Vjsnativ.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information about the terminology that is used to describe Microsoft product updates, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

