We have a Domain running with Windows Server 2003 R2 with Service Pack 2. Don’t know what went wrong my root domain’s DC got crashed. Problem is I don’t exactly know when does it crashed because I don’t check it regularly. Today when I found the same I rebooted my server and came online. As a troubleshooting I tried adding up second domain controller but not succeeded. Alternatively I tried adding a client to this domain but don’t know which domain controller I found.
Later when I checked the Event Viewer I found few entries with Event ID 1645 associated with NTDS replication followed by 1126 with source global catalog. Somebody suggested me to run dcdiag and fsmo. Event that dint helped. So I request you guys to please provide some solution.
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