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Application Object Server (AOS) NetTcp host reachable

Microsoft.Dynamics.AX6.ManagementPack.AOS.Monitoring.AOSEndToEnd.NetTcpHostReachableMonitor (UnitMonitor)

Determines whether a connection can be made to the computer hosting the Application Object Server (AOS).

Knowledge Base article:

Summary

The target IP or device could not be reached

Causes

This can happen for a few reasons:

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The target computer is offline

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The watcher node doesn't have the appropriate permissions

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There may be a firewall between the watcher node and the target device

Resolutions

Try the following troubleshooting steps to attempt to fix the problem

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Ping the target computer to ensure that it is on the network

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Ensure that the Run As account used by the watcher node has the appropriate permissions to the target data source

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Check whether the Windows Firewall is enabled on either the target machine or the watcher node. If it is, create an exclusion for the application you are monitoring.

Element properties:

TargetMicrosoft.Dynamics.AX6.ManagementPack.ClassLibrary.Perspective.AOSNetTCPPortPing
Parent MonitorSystem.Health.AvailabilityState
CategoryCustom
EnabledTrue
Alert GenerateFalse
Alert Auto ResolveTrue
Monitor TypeMicrosoft.Dynamics.AX6.ManagementPack.AOS.Monitoring.AOSEndToEnd.NetTcpHostReachable
RemotableTrue
AccessibilityPublic
RunAsMicrosoft.Dynamics.AX6.ManagementPack.ClassLibrary.AxDbReaderAccount

Source Code:

<UnitMonitor ID="Microsoft.Dynamics.AX6.ManagementPack.AOS.Monitoring.AOSEndToEnd.NetTcpHostReachableMonitor" Accessibility="Public" Enabled="true" Target="MicrosoftDynamicsAX6ManagementPackClassLibrary!Microsoft.Dynamics.AX6.ManagementPack.ClassLibrary.Perspective.AOSNetTCPPortPing" ParentMonitorID="Health!System.Health.AvailabilityState" Remotable="true" Priority="Normal" RunAs="MicrosoftDynamicsAX6ManagementPackClassLibrary!Microsoft.Dynamics.AX6.ManagementPack.ClassLibrary.AxDbReaderAccount" TypeID="Microsoft.Dynamics.AX6.ManagementPack.AOS.Monitoring.AOSEndToEnd.NetTcpHostReachable" ConfirmDelivery="true">

  <Category>Custom</Category>

  <OperationalStates>

    <OperationalState ID="UIGeneratedOpStateId495476b5c0c44157af78239825fa636b" MonitorTypeStateID="IsHealthy" HealthState="Success"/>

    <OperationalState ID="UIGeneratedOpStateId3ae1e5e3222943bc986ff28ed3d66e5c" MonitorTypeStateID="IsNotHealthy" HealthState="Error"/>

  </OperationalStates>

  <Configuration>

    <IntervalSeconds>600</IntervalSeconds>

  </Configuration>

</UnitMonitor>