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LDAP Server Query Error

Microsoft.ActiveDirectoryFederationServices.2016.TokenIssuanceLDAPDCServerErrorMonitor (UnitMonitor)

Knowledge Base article:

Summary

This monitor indicates that the Federation Service failed to query an LDAP server. This will cause token issuance to fail. If the same problem does not occur again within 15 minutes, the health state of this monitor will change back to a Green state. A corresponding alert is generated by the alert rule, and it must be resolved manually.

Causes

The LDAP server returned a specific error when it was queried.

Resolutions

Review the additional details that are provided with this event for the specific error information that is related to this LDAP server issue.

Element properties:

TargetMicrosoft.ActiveDirectoryFederationServices.2016.TokenIssuance
Parent MonitorSystem.Health.ConfigurationState
CategoryConfigurationHealth
EnabledTrue
Alert GenerateFalse
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Windows.SingleEventLogTimer2StateMonitorType
RemotableTrue
AccessibilityPublic
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.ActiveDirectoryFederationServices.2016.TokenIssuanceLDAPDCServerErrorMonitor" Accessibility="Public" Enabled="true" Target="Microsoft.ActiveDirectoryFederationServices.2016.TokenIssuance" ParentMonitorID="Health!System.Health.ConfigurationState" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.SingleEventLogTimer2StateMonitorType" ConfirmDelivery="true">

  <Category>ConfigurationHealth</Category>

  <OperationalStates>

    <OperationalState ID="EventRaised" MonitorTypeStateID="EventRaised" HealthState="Warning"/>

    <OperationalState ID="TimerEventRaised" MonitorTypeStateID="TimerEventRaised" HealthState="Success"/>

  </OperationalStates>

  <Configuration>

    <ComputerName>$Target/Host/Host/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</ComputerName>

    <LogName>$Target/Host/Host/Property[Type="Microsoft.ActiveDirectoryFederationServices.2016.FederationServer"]/ADFSEventLog$</LogName>

    <Expression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">305</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

        <Expression>

          <RegExExpression>

            <ValueExpression>

              <XPathQuery Type="String">PublisherName</XPathQuery>

            </ValueExpression>

            <Operator>MatchesMOM2005RegularExpression</Operator>

            <Pattern>(^AD FS$)</Pattern>

          </RegExExpression>

        </Expression>

      </And>

    </Expression>

    <TimerWaitInSeconds>900</TimerWaitInSeconds>

  </Configuration>

</UnitMonitor>