| Event Id | 16651 |
| Source | SAM |
| Description | The request for a new account-identifier pool failed. The operation will be retried until the request succeeds. The error is %n " %1 " |
| Event Information | According to Microsoft: CAUSE: The following scenarios describe possible causes of inbound replication failure on an operations master. If a domain controller that holds an operations master role cannot complete its initial synchronization requirements, dependent operations may fail or be delayed. Each scenario includes a suggested method to make the operations master active. The following scenarios describe possible causes of inbound replication failure on an operations master. If a domain controller that holds an operations master role cannot complete its initial synchronization requirements, dependent operations may fail or be delayed. Each scenario includes a suggested method to make the operations master active. You used the dcpromo /forceremoval command to forcefully demote a domain controller that had an operations master role. You used the Active Directory Installation Wizard to gracefully demote an operations master domain controller, but the locally held operations master roles do not transfer to surviving domain controllers in the domain or the forest. The domain controller that owns the operations master role contains references to domain controllers that are no longer running Active Directory but that still have metadata. RESOLUTION: 1. To resolve this issue, remove the metadata for offline domain controllers that host the partition if they are no longer active in the forest and will never be used again. After you remove the metadata for the domain controllers that are no longer running Active Directory, restart the current operations master role owner. 2. Replication fails on the directory partition that holds the operations master role. 3. The replication partner for an operations master role partition resides in a remote Active Directory site. 4. The domain controller is started on an isolated network and cannot replicate with domain controllers in its domain or forest because of a lack of network connec |
| Reference Links | Initial synchronization requirements for Windows 2000 Server and Windows Server 2003 operations master role holders "Domain controller has failed to obtain a new identifier pool" error event in Windows 2000 Server SP3 and earlier |
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