Make sure that there's no proxy or firewall that blocks traffic. To do this, use Remote PowerShell to run the following Exchange command: Get-casmailbox | fl EWSEnabled If the value of the EWSEnabled attribute is set to FALSE, Lync/Skye for Business integration will fail. Make sure that EWS is enabled for the user. Validate Exchange credentials by signing in to Outlook Web Access. Note If these options are unavailable, they may be restricted by a Group Policy setting or by the client policy that's applied to the Lync user.
Under Personal Information Manager, make sure that Microsoft Exchange or Microsoft Outlook is selected together with the desired features:
To do this, see Skype for Business downloads and updates.Ĭonfirm that the Lync client is configured for Exchange or Outlook integration: Make sure that the Lync client has the most recent update. The Lync client can't identify the correct autodiscover information. The firewall or proxy blocks necessary traffic. The Exchange Web Services (EWS) service isn't enabled. Integration with Microsoft Exchange Server or Outlook is disabled. This issue occurs if one or more of the following conditions are true: History, voice mail, and Outlook-related features might be unavailable or out of date until the connection is restored. Lync will attempt to repair the connection until it is fully restored. Lync is experiencing connection issues with the Exchange server. Lync is in the process of determining the location of Exchange Web Services. History, voice mail and Outlook-related features will be unavailable.Ĭannot connect to Exchange Web Services to retrieve Calendar and Out of Office Information.
Lync will attempt to retry the connection. Lync cannot connect to the Exchange server.
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