Event ID - 56

Event Id56
SourceW32time
DescriptionThe Domain Controller domain controller name in domain name returned an incorrectly signed time stamp. If this DC is from the machines parent domain, then the trust link between the domains may be broken and must be fixed. If the DC is from this machines own domain, then the machine password for this machine is incorrect and should be corrected.
Event InformationCAUSE:
This behavior can occur if a client computer in the trusting domain performs a secure time synchronization with a domain controller (DC) in the trusted domain by using an expired trust password. 
RESOLUTION:
To resolve this problem, obtain the latest service pack for Windows 2000.
Reference Links Receiving Event ID 56 from W32time on Child Domain Controller

Event ID 56 Cites W32Time as Source and Reports That the DC Returned an Incorrectly Signed Time Stamp

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