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FsProxy Service Not Trusted On Federation Server Error Monitor

Microsoft.ActiveDirectoryFederationServices.2016.TrustManagementFsProxyServiceNotTrustedOnStsErrorMonitor (UnitMonitor)

Knowledge Base article:

Summary

The federation server proxy was not able to authenticate to the Federation Service.

Causes

The federation server proxy was either revoked or the Federation Service was reconfigured.

Resolutions

Ensure that the proxy is trusted by the Federation Service. To do this, log on to the proxy computer with the host name that is identified in the certificate subject name and re-establish trust between the proxy and the Federation Service using the Install-WebApplicationProxy cmdlet.

Element properties:

TargetMicrosoft.ActiveDirectoryFederationServices.2016.TrustManagement
Parent MonitorSystem.Health.ConfigurationState
CategoryConfigurationHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityMatchMonitorHealth
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Windows.SingleEventLogTimer2StateMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
FsProxy Service Not Trusted On Federation Error
Please see the alert context for details.
RunAsDefault

Source Code:

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

  <Category>ConfigurationHealth</Category>

  <AlertSettings AlertMessage="Microsoft.ActiveDirectoryFederationServices.2016.TrustManagementFsProxyServiceNotTrustedOnStsErrorMonitor_AlertMessageResourceID">

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>MatchMonitorHealth</AlertSeverity>

  </AlertSettings>

  <OperationalStates>

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

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

  </OperationalStates>

  <Configuration>

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

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

    <Expression>

      <And>

        <Expression>

          <SimpleExpression>

            <ValueExpression>

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

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="UnsignedInteger">276</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>