Server access-denied response received when sending a presence notification to a remote server

Microsoft.LS.2010.Monitoring.UnitMonitor.TimerResetEvent.PresenceFocus_ES_W_RPC_SERVER_ACCESS_DENIED (UnitMonitor)

Knowledge Base article:

Summary

The server has returned RPC Access Denied responses.

Causes

More likely cause is that Enterprise Edition Servers are not running under the same group account.

Resolutions

Ensure normal activity or that connecting Enterprise Edition Servers are running under the same group account as this server.

Element properties:

TargetMicrosoft.LS.2010.Component.PresenceFocus
Parent MonitorSystem.Health.AvailabilityState
CategoryAvailabilityHealth
EnabledTrue
Alert GenerateTrue
Alert SeverityError
Alert PriorityNormal
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Windows.RepeatedEventLogTimer2StateMonitorType
RemotableTrue
AccessibilityPublic
Alert Message
The server has returned RPC Access Denied responses.
{0}

Please see the 'Product Knowledge' and the 'Alert Context' tab on Alert Properties view for more information.
RunAsDefault

Source Code:

<UnitMonitor ID="Microsoft.LS.2010.Monitoring.UnitMonitor.TimerResetEvent.PresenceFocus_ES_W_RPC_SERVER_ACCESS_DENIED" Accessibility="Public" Enabled="true" Target="Microsoft.LS.2010.Component.PresenceFocus" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" TypeID="Windows!Microsoft.Windows.RepeatedEventLogTimer2StateMonitorType" ConfirmDelivery="true">
<Category>AvailabilityHealth</Category>
<AlertSettings AlertMessage="Alert_The_server_has_returned_RPC_Access_Denied_responses.">
<AlertOnState>Error</AlertOnState>
<AutoResolve>true</AutoResolve>
<AlertPriority>Normal</AlertPriority>
<AlertSeverity>Error</AlertSeverity>
<AlertParameters>
<AlertParameter1>$Data/Context/Context/DataItem/EventDescription$</AlertParameter1>
</AlertParameters>
</AlertSettings>
<OperationalStates>
<OperationalState ID="Microsoft.LS.2010.Monitoring.UnitMonitor.TimerResetEvent.PresenceFocus_ES_W_RPC_SERVER_ACCESS_DENIED.Error" MonitorTypeStateID="RepeatedEventRaised" HealthState="Error"/>
<OperationalState ID="Microsoft.LS.2010.Monitoring.UnitMonitor.TimerResetEvent.PresenceFocus_ES_W_RPC_SERVER_ACCESS_DENIED.Success" MonitorTypeStateID="TimerEventRaised" HealthState="Success"/>
</OperationalStates>
<Configuration>
<RepeatedComputerName>$Target/Host/Host/Host/Property[Type="Windows!Microsoft.Windows.Computer"]/NetworkName$</RepeatedComputerName>
<RepeatedLogName>Lync Server</RepeatedLogName>
<RepeatedExpression>
<And>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="UnsignedInteger">EventDisplayNumber</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="UnsignedInteger">30959</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
<Expression>
<SimpleExpression>
<ValueExpression>
<XPathQuery Type="String">PublisherName</XPathQuery>
</ValueExpression>
<Operator>Equal</Operator>
<ValueExpression>
<Value Type="String">LS User Services</Value>
</ValueExpression>
</SimpleExpression>
</Expression>
</And>
</RepeatedExpression>
<Consolidator>
<ConsolidationProperties/>
<TimeControl>
<WithinTimeSchedule>
<Interval>1800</Interval>
</WithinTimeSchedule>
</TimeControl>
<CountingCondition>
<Count>10</Count>
<CountMode>OnNewItemTestOutputRestart_OnTimerSlideByOne</CountMode>
</CountingCondition>
</Consolidator>
<TimerWaitInSeconds>3600</TimerWaitInSeconds>
</Configuration>
</UnitMonitor>