- The Client Access Server that is used by the meeting organizer and the Client Access Server that reports the free/busy information for the attendee are in different sites. Additionally, they are in different time zones.
- The meeting organizer’s client is configured in a time zone that differs from the time zone of the mailbox server for the organizer and for the attendee.
Note This problem does not occur if the meeting organizer uses Microsoft Office Outlook Web Access to schedule the meeting.