Hi
with intra-org i guess cross forest?
Does it work in OWA?Have you configured this: https://technet.microsoft.com/en-us/library/bb125182%28v=exchg.150%29.aspx?f=255&MSPPError=-2147217396
please run this Exchange powershell command:
Get-MailboxFolderPermission -Identity yourmail@domain.com:\calendar |fl
Which permission is listed?
Try to add permission to another user:
Add-MailboxFolderPermission -Identity yourmail@domain.com:\calendar -User anotheruser@domain.com -AccessRights AvailabilityOnly
I granted myself access to the other users. I have access to my own calendar. And it still does not show.
When I hover over the calendar of the other mailbox where the free busy data is not showing, the message states "Your server location could not be determined".
please run Test-OutlookWebServices |fl
Post any error message here.
Also CTRL+right click outlook icon near the clock and choose connection status,see if any are broken.Also do test e-mail autoconfiguration on same menu.
Which certificate has been set on your exchange 2013 server?3rd part or from root ca?