LDAP Lookup Error

Microsoft.ActiveDirectoryFederationServices.2016.TokenIssuanceAttributeStoreFindDCFailedErrorMonitor (UnitMonitor)

Knowledge Base article:

Summary

This monitor indicates that the Federation Service failed to find a domain controller in the domain. This will cause token issuance for this domain to fail.

If the same problem does not happen 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 domain controller for the domain is unavailable.

Resolutions

Use Nltest.exe to determine why a domain controller cannot be located. Nltest is a command-line tool that is built into the Windows Server 2008 operating system. For more information, see Nltest.

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.TokenIssuanceAttributeStoreFindDCFailedErrorMonitor" 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">238</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>