Identity Manager users may encounter search or account creation failures when interacting with Active Directory (ADS). This issue typically manifests during the creation of a new ADS account, even if modifications to existing accounts remain functional.
Identity Manager
Microsoft/ADS Issue: The Domain Controller (DC) account-identifier allocator (RID Master) fails to initialize, preventing the assignment of new SIDs.
When try to create a new ADS account we can see the error message in the Event Viewer (System)
"The account-identifier allocator failed to initialize properly. The record data contains the NT error code that caused the failure. Windows will retry the initialization until it succeeds; until that time, account creation will be denied on this Domain Controller. Look for other SAM event logs that may indicate the exact reason for the failure."
Domain Controller Review:
If the information above is not your case, please, see the KB article:
LDAP: error code 53 - Unwilling To Perform