Error 611, authentication errors in LDAP and AD Connect

J

jwesner

Our main adminstrator account is tied to at least 2 services that I know of, LDAP on the printer so it can retrieve email addresses and somewhere in the AD connect tool. It's a hybrid environment.


The first time I noticed this was when attempting to RDP to any server with this account and getting 'An authentication error has occured, local security authority cannot be contacted'.


But there is also this log from the event viewer.

Log Name: Application Source: Directory Synchronization Date: 12/18/2019 3:33:07 PM Event ID: 611 Task Category: None Level: Error Keywords: Classic User: N/A Computer: xxxxx Description: Password hash synchronization failed for domain: xxxxx, domain controller hostname: <not available>, domain controller IP address: <not available>. Details: Microsoft.Online.PasswordSynchronization.SynchronizationManagerException: Unable to open connection to domain: xxxx.org. Error: An exception occurred while attempting to locate a domain controller for domain xxxx.org. ---> Microsoft.Online.PasswordSynchronization.DirectoryReplicationServices.DrsCommunicationException: An exception occurred while attempting to locate a domain controller for domain xxxx.org. ---> System.Security.Authentication.AuthenticationException: The user name or password is incorrect. ---> System.Runtime.InteropServices.COMException: The user name or password is incorrect.


The password for this account is set to never expire and the password hasn't been changed. I'm assuming a windows update has come in and updated some default value and now something is not working as it did before.


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