Event ID - 8218

Event Id8218
DescriptionA network error occurred while the Microsoft Exchange Conference Management service tried to log on to the Microsoft Exchange Information Store. If there is a Global Catalog in the site, verify that it is available. If a Domain Controller has been manually promoted to a Global Catalog, please reboot the Global Catalog. Error code: <error code>; Global Catalog: <name>.
Event InformationPerform the user action specified in the message.
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