Microsoft KB Archive/888647

= Users are repeatedly prompted for credentials and authentication is not successful when a downstream computer that is running ISA Server 2004 uses Integrated Windows authentication to authenticate to an upstream computer that is running ISA Server 2004 =

Article ID: 888647

Article Last Modified on 12/8/2004

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APPLIES TO


 * Microsoft Internet Security and Acceleration Server 2004 Standard Edition

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SYMPTOMS
You configure a firewall chain between two or more computers that are running Microsoft Internet Security and Acceleration (ISA) Server 2004. A downstream computer that is running ISA Server 2004 uses Integrated Windows authentication to authenticate to an upstream computer that is running ISA Server 2004. The following symptoms occur:
 * The authentication is not successful.
 * Users are repeatedly prompted for credentials.



CAUSE
This behavior occurs if the following conditions are true:
 * The downstream computer uses a user name or a password to authenticate to the upstream computer.
 * The user name or the password contains characters other than 7-bit characters.

Note English characters are 7-bit characters.



RESOLUTION
To resolve this issue, use only 7-bit characters for the user name and the password to authenticate to the upstream computer.

