troubleshooting Question

Office 365 Users cant See On-Premise Free/Busy Information

Avatar of Scott Townsend
Scott TownsendFlag for United States of America asked on
Microsoft OfficeExchangeMicrosoft 365
14 Comments3 Solutions7560 ViewsLast Modified:
Exchange 2010 Hybrid Office 365 Free Busy Issues.

On-Premise users can see Free/Busy Information of On-Premise users.
On-Premise users can see Free/Busy Information of O365 Users.
O365 Users can See Free/Bust Information of O365 Users.

O365 Users cannot See Free/Bust Information of On-Premise Users.

The O365 user can Open the Users calendar and see everything, though when they use the Scheduling Assistant when creating a Meeting they get:

No Information.
No free/busy information could be retrieved
the external recipient's server could not be determined.
Contact your administrator

MS Remote Connectivity Analyzer comes back with all okay for AutoDiscover.
https://www.testconnectivity.microsoft.com/

The User's Default Calendar Permissions allow for "AvailabilityOnly", I have also tried "LimitedDetails" with no success.


RunspaceId   : c704d8d7-fc2a-4c5e-84ee-f9387189b798
FolderName   : Calendar
User         : Default
AccessRights : {AvailabilityOnly}
Identity     : Default
IsValid      : True

RunspaceId   : c704d8d7-fc2a-4c5e-84ee-f9387189b798
FolderName   : Calendar
User         : Anonymous
AccessRights : {None}
Identity     : Anonymous
IsValid      : True

Here is the Default Sharing Policy:

RunspaceId        : c70458d7-f52a-4c55-84e5-f9387189b758
Domains           : {Anonymous:CalendarSharingFreeBusyReviewer, *:CalendarSharingFreeBusySimple}
Enabled           : True
Default           : True
AdminDisplayName  :
ExchangeVersion   : 0.10 (14.0.100.0)
Name              : Default Sharing Policy
DistinguishedName : CN=Default Sharing Policy,CN=Federation,CN=<site>,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=costono,DC=com
Identity          : Default Sharing Policy
Guid              : 35eca126-d55b-4d84-95e9-6f7f99a6c46e
ObjectCategory    : costono.com/Configuration/Schema/ms-Exch-Sharing-Policy
ObjectClass       : {top, msExchSharingPolicy}
WhenChanged       : 3/28/2018 11:24:37 AM
WhenCreated       : 6/20/2011 4:22:52 PM
WhenChangedUTC    : 3/28/2018 6:24:37 PM
WhenCreatedUTC    : 6/20/2011 11:22:52 PM
OrganizationId    :
OriginatingServer : addc.costono.COM
IsValid           : True
ASKER CERTIFIED SOLUTION
Scott Townsend
IT Director

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