Alert: Outlook Web Access logon failure: Unexpected error during synthetic Outlook Web Access logon
Issue: There is a good discussion on this: http://technet.microsoft.com/en-us/library/aa996009.aspx (issue #3)
OWA logon verification : Cannot measure OWA availability for the following URL:0×80131502(-2146233086) Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
Resolution: This rule needs to have SSL configured. Steps here to configure SSL on the Exchange 2003 front-end servers are available at http://www.petri.co.il/configure_ssl_on_owa.htm.
To enable SSL:
-Open Internet Information Services (IIS Manager).
-Connect to the server name of your front-end Exchange server.
-Drill down to Web Sites, then to the web site.
-Locate the two virtual directories named OMA and Microsoft-Server-ActiveSync.
-Open the properties of the virtual directories, choose the Directory Security tab.
-Under Secure communications, click Edit.
-Check the box labeled ”Require security channel (SSL)”.
Submitted By: Cameron Fuller (MVP)