When you enable the “Allow users to change their passwords” option on the Web listener used for publishing Exchange Server, your users experience delays while logging in to Outlook Web Access (OWA). The delay occurs after the user enters his credentials and clicks on the Log On button in the OWA logon form. You are using ISA Server Forms-Based Authentication. ISA Server 2006 is running on a Windows Server 2003-based computer with Service Pack 2 or the Scalable Networking Pack installed.

Go here to find the solution to this problem:

http://support.microsoft.com/kb/555958/EN-US

HTH,

Tom

Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://blogs.isaserver.org/shinder/
Book: http://tinyurl.com/3xqb7
Email: tshinder@isaserver.org
MVP — Microsoft Firewalls (ISA)