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Event ID: 21218 Source: MicrosoftOperationsManager

The Agent could not load any cached configuration information. This error may occur when the configuration cache file is not present (which will be the case when an agent/server gets installed for the first time) or when the file becomes corrupted.
Management Group: <group name>

The Agent will not process data until it successfully retrieves configuration information.
As per Microsoft: "An informational error appears in the Event log with the Event ID of 21218 when an agent cannot load any cached configuration information. This error occurs if the cache configuration file is missing. This file is not present when a Management Server and agents are newly installed. This error is expected and no action is required". See "Troubleshoot MOM 2005 Agent Installation" for more details.

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