You record a Web test successfully in Microsoft Visual Studio Team System 2008 Service Pack 1 (SP1). However, when you play back the test, the user authentication fails. Then, you are redirected to the logon page. Additionally, the following information appears in the Visual Studio IDE:
The HTTP Status column shows "200 OK."
The Web Browser tab shows the following error message:
Request failed: Unable to read data from the transport connection: The connection was losed.
The Details tab shows the following error message:
System.IO.IOException: Unable to read data from the transport connection: The connection was closed. at System.Net.ConnectStream.EndRead(IAsyncResult asyncResult) at Microsoft.VisualStudio.TestTools.WebStress.DataCaptureStream.EndRead(IAsyncResult asyncResult) at Microsoft.VisualStudio.TestTools.WebStress.WebTestTransaction.ReadResponse(IAsyncResult result)
The user credentials are authenticated when you surf the Web site without using the Web test.
This problem occurs when the Web site uses the WebResponse.close method.
This problem occurs because a System.IO.IOException exception occurs on the first Web test request. Then, the connection is closed. Therefore, the cookie is not set for the second Web test request, and then the Web test fails.
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 Studio 2008 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
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.
You must have Visual Studio Team System 2008 SP1 installed to apply this hotfix.
You do not have to restart the computer if Microsoft Visual Studio is not being used.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
The English version of this hotfix has the file attributes (or later file attributes) 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 item in Control Panel.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about software update terminology, 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