ISA Server 2004 continuously prompts you for credentials when you try to access a Web listener that uses RSA SecureID authentication in ISA Server 2004

You try to access a Web listener that uses RSA SecureID authentication in Microsoft Internet Security and Acceleration (ISA) Server 2004. ISA Server 2004 continuously prompts you for credentials.

This problem occurs because an authentication loop exists between ISA Server 2004 and the server that is running Microsoft Internet Information Services (IIS).

RSA Authentication Agent 5.3 for Web fix ID16465-2 resolves this problem. To obtain this fix, call RSA Security Customer Support at the following telephone number: Note This telephone number is only valid in the United States.

Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.

When you try to access a Web listener that uses RSA SecureID authentication in ISA Server 2004, ISA Server 2004 prompts you for credentials. When the request arrives at the upstream server that is running IIS, ISA Server 2004 again prompts you for credentials. However, if you enable domain cookies, ISA Server 2004 only prompts you for credentials one time. After you provide the credentials, you can use the cookies to access the server that is running IIS.

The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.