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Failed to bind to the specified object, Failed to load data: Input not valid: Validated value is empty

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Since today I get an error message while I run the task Active Directory Sync Daily Schedule CN=Computers


Failed to bind to the specified object (LDAP://XXX.XX.XX.XX/CN=Computers,DC=XXXXXXXXX,DC=XX). Error code = 0x8007203a, The server is not operational. Error code: 0x8007203a

I used different AD servers and different creds and server reboot but no change.

Before one week was working fine.


ESET Security Management Center (Server), Version 7.2 (7.2.1266.0)
ESET Security Management Center (Web Console), Version 7.2 (
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Microsoft Windows Server 2016 Standard (64-bit), Version 10.0.14393.3750
Connected Clients: 275
Active Licenses: 1
License Management
Installed Components:
Update module    1021 (20200218)
Translation support module    1807 (20200714)
SysInspector module    1278 (20200609)
SSL module    1048 (20200608)
Push Notification Service module    1064 (20200625)
Configuration module    1822.4 (20200505)




Also when I edit the task when I complete the password I get an:

Failed to load data: Input not valid: Validated value is empty






Edited by pps
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  • ESET Moderators

Hello Peter,

I would first check https://help.eset.com/esmc_admin/72/en-US/sg_server_tasks_ad.html 


ESMC Server 7.2 on Windows uses the encrypted LDAPS (LDAP over SSL) protocol by default for all Active Directory (AD) connections.

If you upgrade an earlier ESMC version to  ESMC 7.2 and you were using the Active Directory synchronization, synchronization tasks will fails in ESMC 7.2.

For a successful AD connection over LDAPS, configure the following:

1.The domain controller must have installed a machine certificate. To issue a certificate for your domain controller, follow the steps below:

a)Open the Server Manager, click Manage > Add Roles and Features and install the Active Directory Certificate Services > Certification Authority. A new Certification Authority will be created in Trusted Root Certification Authorities.

b)Navigate to Start > certmgr > Certificates - Local Computer > Personal > right click the empty pane > All Tasks > Request New Certificate > Enroll Domain Controller role.

c)Verify that the issued certificate contains the FQDN of the domain controller.


2.When providing connection settings to the AD server, type the FQDN of the domain controller (as provided in the domain controller certificate) in the Server or Host field. IP address is no longer sufficient for LDAPS.



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