Free-busy info
Hi, 

We have 3 exchange servers (XCHANGE1,2,3), all running Exchange 2013, all having CAS roles in production, XCHANGE 1 and 2 forming a DAG (mailbox role installed). We have 3 mailbox datastores activated as follows: MBXSTORE1 activated in XCHANGE 1 and MBXSTORE2 and 3 activated in XCHANGE2. All mailbox stores have a passive copy in the other exchange server. The problem is that people pertaining to stores activated in XCHANGE2 cannot see (greyed-out with white stripes) the free/busy info, in Outlook 2010 clients, for users in datastore MBXSTORE1 activated in XCHANGE1. However, people in MBXSTORE1 are able to check free-busy information of all users, irrespective of whether they pertain to a store or another. Moreover, inside each datastore all users can check this free-busy info for other users in the same datastore. When activating MBXSTORE1 in XCHANGE 2, then all users from the remaining datastores are able to check free/busy info for users in MBXSTORE1. So it seems a problem related to one-way availability of this info in XCHANGE1 server. 

Any idea how we could solve this issue, 

Thanks!
April 16th, 2015 11:33am

Hi,

I suggest to use the following command to check the settings for the Exchange Web Services virtual directory EWS under the default website in IIS on each server.

Get-WebServicesVirtualDirectory -Identity CAS01 | fl *URL,*authentication

Get-WebServicesVirtualDirectory -Identity CAS02 | fl *URL,*authentication

Then compare the settings between two Exchange Servers, especially the InternalURL, ExternalURL and authentication methods.

Best Regards.

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April 17th, 2015 5:21am

The information is the same for each CAS, as follows:

-----------------------------

InternalNLBBypassUrl          :
InternalUrl                   : https://xchange2.gda.dis/EWS/Exchange.asmx
ExternalUrl                   :
CertificateAuthentication     :
LiveIdNegotiateAuthentication :
WSSecurityAuthentication      : True
LiveIdBasicAuthentication     : False
BasicAuthentication           : False
DigestAuthentication          : False
WindowsAuthentication         : True
OAuthAuthentication           : True
AdfsAuthentication            : False

InternalNLBBypassUrl          :
InternalUrl                   : https://xchange1.gda.dis/EWS/Exchange.asmx
ExternalUrl                   :
CertificateAuthentication     :
LiveIdNegotiateAuthentication :
WSSecurityAuthentication      : True
LiveIdBasicAuthentication     : False
BasicAuthentication           : False
DigestAuthentication          : False
WindowsAuthentication         : True
OAuthAuthentication           : True
AdfsAuthentication            : False

InternalNLBBypassUrl          :
InternalUrl                   : https://xchange3.gda.dis/EWS/Exchange.asmx
ExternalUrl                   :
CertificateAuthentication     :
LiveIdNegotiateAuthentication :
WSSecurityAuthentication      : True
LiveIdBasicAuthentication     : False
BasicAuthentication           : False
DigestAuthentication          : False
WindowsAuthentication         : True
OAuthAuthentication           : True
AdfsAuthentication            : False

---------------

Thank you,

Regards!

April 17th, 2015 6:31am

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