LDAP Sync Job do nothing and quickly exits

Issue description

LDAP Sync Job do nothing and quickly exits, domain user profile on this Verint stays empty

PS: The Active Directory is accessible through LDAP from the machine where Job Server is running, we had checked it from PowerShell Get-ADUser command

Job Server log output (no exceptions)
2021-09-22 19:50:05,634 - [STARTING] Ldap Sync (Id=e4d3b893-7f63-458c-9e04-6c5b6a67f8dd, JobId=875d3303-c73e-4a1e-a944-a3b6a4617b80)
2021-09-22 19:50:05,650 - [FINISHED] Ldap Sync (Id=e4d3b893-7f63-458c-9e04-6c5b6a67f8dd, JobId=875d3303-c73e-4a1e-a944-a3b6a4617b80) Elapsed: 00:00:00.0156004

Edited config files

communityserver_override.config

<?xml version="1.0" encoding="utf-8"?>
<Overrides>
	<Override xpath="/CommunityServer/Core/extensionModules"
		mode="change"
		name="enabled"
		value="true" />
	<!-- <Override xpath="/CommunityServer/Core/extensionModules/add[@name='WindowsAuthentication']"
		mode="change"
		name="allowAutoUserRegistration"
		value="false" /> -->
	<Override xpath="/CommunityServer/Core/extensionModules/add[@name='WindowsAuthentication']"
		mode="change"
		name="adminWindowsGroupIsSystemAdministrator"
		value="false" />
	<!-- <Override xpath="/CommunityServer/Core/extensionModules/add[@name='WindowsAuthentication']"
		mode="change"
		name="adminWindowsGroup"
		value="MyAdministrativeGroup" /> -->
	<!-- <Override xpath="/CommunityServer/Core/extensionModules/add[@name='WindowsAuthentication']"
		mode="change"
		name="stripDomainName"
		value="false" /> -->
	<Override xpath="/CommunityServer/Core/extensionModules/add[@name='WindowsAuthentication']"
		mode="change"
		name="emailDomain"
		value="@COMPANYNAME.COM" /> <!-- this value was replaced with dummy value -->
	<Override xpath="/CommunityServer/Core/extensionModules/add[@name='WindowsAuthentication']"
		mode="change"
		name="profileRefreshInterval"
		value="1" />
</Overrides>

Telligent.Jobs.Server.exe.config

<?xml version="1.0" encoding="utf-8"?>
<!--
	Make sure to keep any changes to this file in sync between web.config and Telligent.Jobs.Server.exe.config
	(Except for the logging section which is unique to the Job Server)
-->
<configuration>
	<configSections>
		<sectionGroup name="common">
			<section name="logging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging" />
		</sectionGroup>
		<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
		<section name="jobs" type="Telligent.Jobs.Configuration.JobsConfiguration, Telligent.Jobs" />
		<section name="TinyMCE" type="Moxiecode.TinyMCE.ConfigHandler,Moxiecode.TinyMCE" requirePermission="false" />
		<section name="LdapConnection" type="System.Configuration.NameValueSectionHandler" />
	</configSections>
    <LdapConnection>
      <add key="Server" value="LDAP://" />
      <add key="Port" value="389" />
      <add key="UserDN" value="CN=DOMAINUSER,CN=Users,DC=COMPANYNAME,DC=COM" /> <!-- this value was replaced with dummy value -->
      <add key="Password" value="SOMEPASSWORD" /> <!-- this value was replaced with dummy value -->
      <add key="Authentication" value="Secure" />
    </LdapConnection>
    <!-- .... -->
    <!-- skipped unchanged configuration -->
    <!-- .... -->
</configuration>