Does the EventLog Analyzer contact the Domain Control each night at a set time?

Does the EventLog Analyzer contact the Domain Control each night at a set time?

Have an odd error on my domain controller, originating from the ME Log analyzer PC each night at 10:00 PM.
 Each night the Domain Controller list an error "A client made a DirSync LDAP request for a directory partition"
Source: Microsoft-Windows-ActiveDirectory_DomainService
USERID is the user ID of the PC on which Manage Engine runs.

I am not trying to capture and server or domain data, just output from the stand alone firewall.
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