Lost connectivity to an Active Directory server.

OCS_Communicator_Web_Access_Authentication_50008_CWA (Rule)

Knowledge Base article:

Summary

Causes

Communicator Web Access may not be able to reach an Active Directory server due to network connectivity problems.

Resolutions

Ensure connectivity to Active Directory. The server will try to locate an available Active Directory server the next time a user attempts to log on.

Element properties:

Target

Microsoft_Office_Communications_Server_2007_R2_Communicator_Web_Access

Category

EventCollection

Enabled

True

Event_ID

50008

Event Source

OCS Communicator Web Access Authentication

Alert Generate

True

Alert Severity

Error

Alert Priority

Normal

Remotable

True

Alert Message

Lost connectivity to an Active Directory server.

{0}

Event Log

Office Communications Server

Member Modules:

ID	Module Type	TypeId	RunAs
CollectEvent	DataSource	Microsoft.Windows.EventProvider	Default
WriteAlert	WriteAction	System.Health.GenerateAlert	Default
WriteToDB	WriteAction	Microsoft.SystemCenter.CollectEvent	Default
WriteToDW	WriteAction	Microsoft.SystemCenter.DataWarehouse.PublishEventData	Default

Source Code:

<Rule ID="OCS_Communicator_Web_Access_Authentication_50008_CWA" Enabled="true" Target="Microsoft_Office_Communications_Server_2007_R2_Communicator_Web_Access" ConfirmDelivery="false" Remotable="true" Priority="Normal" DiscardLevel="100">

  <Category>EventCollection</Category>

  <DataSources>

    <DataSource ID="CollectEvent" TypeID="SCWindowsLibrary!Microsoft.Windows.EventProvider">

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

      <LogName>Office Communications Server</LogName>

      <Expression>

        <And>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

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

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value Type="String">OCS Communicator Web Access Authentication</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

          <Expression>

            <SimpleExpression>

              <ValueExpression>

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

              </ValueExpression>

              <Operator>Equal</Operator>

              <ValueExpression>

                <Value Type="UnsignedInteger">50008</Value>

              </ValueExpression>

            </SimpleExpression>

          </Expression>

        </And>

      </Expression>

    </DataSource>

  </DataSources>

  <WriteActions>

    <WriteAction ID="WriteToDB" TypeID="SCSystemLibrary!Microsoft.SystemCenter.CollectEvent"/>

    <WriteAction ID="WriteAlert" TypeID="SCHealth!System.Health.GenerateAlert">

      <Priority>1</Priority>

      <Severity>2</Severity>

      <AlertMessageId>$MPElement[Name="Lost_connectivity_to_an_Active_Directory_server_"]$</AlertMessageId>

      <AlertParameters>

        <AlertParameter1>$Data/EventDescription$</AlertParameter1>

      </AlertParameters>

      <Suppression>

        <SuppressionValue>$Data/EventDisplayNumber$</SuppressionValue>

        <SuppressionValue>$Data/PublisherName$</SuppressionValue>

      </Suppression>

    </WriteAction>

    <WriteAction ID="WriteToDW" TypeID="SCDataWarehouseLibrary!Microsoft.SystemCenter.DataWarehouse.PublishEventData"/>

  </WriteActions>

</Rule>