DKM Certificate Key Load Error

Microsoft.ActiveDirectoryFederationServices.2016.CertificateManagementDKMCertificateKeyLoadWarningMonitor (UnitMonitor)

Knowledge Base article:

Summary

This monitor indicates that the Federation Service failed to load its token-signing, token-decrypting, and SSL certificates. If the failing certificate is the primary certificate, the AD FS Windows service will fail to start up.

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 following are possible causes for this event:

Active Directory objects are missing under the specified distinguished name in the diagnostic information regarding X.509 certificate private key sharing that is provided in this event.
The access control list (ACL) permissions of the Active Directory objects that are specified in the diagnostic information have changed, and the service identity of AD FS no longer has rights to read or modify those objects.

Resolutions

The following are possible resolutions for this event:

You may have to restore all Active Directory objects under the distinguished name that was specified in the event-included diagnostic information.
Work with your domain administrator to help restore read/write ACL permissions.

Element properties:

Target

Microsoft.ActiveDirectoryFederationServices.2016.CertificateManagement

Parent Monitor

System.Health.ConfigurationState

Category

ConfigurationHealth

Enabled

True

Alert Generate

True

Alert Severity

Warning

Alert Priority

Normal

Alert Auto Resolve

True

Monitor Type

Microsoft.Windows.SingleEventLogTimer2StateMonitorType

Remotable

True

Accessibility

Public

Alert Message

DKM Certificate Key Load Error

Please see the alert context for details.

RunAs

Default

Source Code:

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

  <Category>ConfigurationHealth</Category>

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

    <AlertOnState>Warning</AlertOnState>

    <AutoResolve>true</AutoResolve>

    <AlertPriority>Normal</AlertPriority>

    <AlertSeverity>Warning</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>

      <Or>

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">329</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <RegExExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>MatchesMOM2005RegularExpression</Operator>

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

              </RegExExpression>

            </Expression>

          </And>

        </Expression>

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">331</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <RegExExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>MatchesMOM2005RegularExpression</Operator>

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

              </RegExExpression>

            </Expression>

          </And>

        </Expression>

        <Expression>

          <And>

            <Expression>

              <SimpleExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>Equal</Operator>

                <ValueExpression>

                  <Value Type="UnsignedInteger">332</Value>

                </ValueExpression>

              </SimpleExpression>

            </Expression>

            <Expression>

              <RegExExpression>

                <ValueExpression>

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

                </ValueExpression>

                <Operator>MatchesMOM2005RegularExpression</Operator>

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

              </RegExExpression>

            </Expression>

          </And>

        </Expression>

      </Or>

    </Expression>

    <TimerWaitInSeconds>900</TimerWaitInSeconds>

  </Configuration>

</UnitMonitor>