Microsoft KB Archive/810264

= Communication error occurs during Visual Studio .NET Trial Edition installation =

Article ID: 810264

Article Last Modified on 5/25/2006

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APPLIES TO


 * Microsoft Visual Studio .NET (2002), Trial Edition 1.0

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SYMPTOMS
When you install Visual Studio .NET Trial Edition, you may receive following error message:

A communication error has occurred. Your request cannot be processed at this time. Please try again later, or select the Telephone option to speak with a Customer Support Representative.



CAUSE
This problem occurs because you must activate the Trial Edition of Visual Studio .NET over the Internet.



RESOLUTION
To resolve this problem, connect to the Internet to complete the activation process. To connect to Internet, verify that the following ports are available:
 * 80 - HTTP
 * 443 - HTTPS



STATUS
This behavior is by design.



MORE INFORMATION
Visual Studio .NET Trial Edition requires Internet activation. For Internet activation to succeed, you must configure firewalls or other devices that exist between the client and the Internet to permit traffic to pass over port 80 and port 443. You can use Microsoft Internet Explorer, or another Internet browser, to test connectivity through these ports.

To test whether port 80 is available:
 * Open Internet Explorer. Type http://www.microsoft.com:80 in the Address bar, and then press ENTER.

To test whether port 443 is available:
 * Open Internet Explorer. Type https://s.microsoft.com:443 in the Address bar, and then press ENTER.

Each time you visit the Microsoft Web site, ports 80 and 443 are accessible. If an error message such as &quot;connection timed out&quot; appears in your browser, the corresponding port may be blocked.

