We are seeing the following on a Windows 2012 R2 server with Dynamics CRM 2016 installed.

Log Name: Application
Source: Microsoft-Windows-Search
Date: 03/11/2017 14:24:47
Event ID: 3028
Task Category: Gatherer
Level: Error
Keywords: Classic
User: N/A
Computer: servername.domain.suffix
Description:
The gatherer object cannot be initialized.

Context: Windows Application, SystemIndex Catalog

Details:
The specified object cannot be found. Specify the name of an existing object. (HRESULT : 0x80040d06) (0x80040d06)

Event Xml:



3028
0
2
3
0
0x80000000000000

698783


Application
servername.domain.suffix





Context: Windows Application, SystemIndex Catalog

Details:
The specified object cannot be found. Specify the name of an existing object. (HRESULT : 0x80040d06) (0x80040d06)

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We are suddenly seeing this on our Dynamics 365 server whether by browser or by Outlook client:

Error
An error has occurred.

Try this action again. If the problem continues, check the Microsoft Dynamics 365 Community for solutions or contact your organization's Microsoft Dynamics 365 Administrator. Finally, you can contact Microsoft Support.

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For some reason a second server restart solved the issue...

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