Lync Server 2010 PowerShell synthetic transactions fail

Article ID: 2751720 - View products that this article applies to.
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Symptoms

  • The Lync Server 2010 pool consists of more than one Lync Server 2010 server
  • The Lync Server 2010 PowerShell synthetic transactions fails and returns an error similar to the one listed below to the Lync Server Management Shell console

    VERBOSE: Workflow Instance Id e75a536c-3755-4017-a219-96940b1094a5, started.
    TargetFqdn : pool01.contoso.com
    Result : Failure
    Latency : 00:00:00
    Error : 504, Server time-out
    Diagnosis : ErrorCode=1038,Source=server01.contoso.com,Reason=Failed to connect to a peer server
    Microsoft.Rtc.Signaling.DiagnosticHeader
    VERBOSE: 'Register' activity started.
    Sending Registration request:
    Target Fqdn = pool01.contoso.com
    User Sip Address = sip:bobkelly.pool01@contoso.com <sip:bobkelly.pool01@contoso.com>
    Registrar Port = 5061.
    Auth Type 'Trusted' is selected.
    Registration Request hit against Unknown
    'Register' activity completed in '40.2277512' secs.
    'Register' activity started.
    Sending Registration request:
    Target Fqdn = pool01.contoso.com
    User Sip Address = sip:cashton.pool01@contoso.com.com <sip:cashton.pool01@contoso.com.com> 
    Registrar Port = 5061.
    Auth Type 'Trusted' is selected.
    Registration Request hit against Unknown
    'Register' activity completed in '0.366368' secs.
    'InviteP2PIM' activity started.
    An exception 'A 504 (Server time-out) response was received from the network and the operation failed. See the exception details for more information.' occurred during Workflow
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Cause

  • The Windows Firewall on the Lync Server 2010 pool servers is not configured to allow incoming connectivity from the Windows PowerShell application
  • The Windows Firewall on the Lync Server 2010 pool servers is not configured to allow incoming connectivity from the Microsoft SCOM 2007 R2 MonitoringHost.exe process
Information Some Lync Server 2010 PowerShell synthetic transactions require inter Lync Server 2010 pool server connectivity for the Windows PowerShell process.

Information When the Lync Server 2010 PowerShell synthetic transaction is executed from the Lync Server 2010 watcher node inter Lync Server 2010 pool server connectivity is required for the Microsoft SCOM 2007 R2 MonitoringHost and Windows PowerShell processes.
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Resolution

Add the PowerShell and MonitoringHost executable files to the Windows Firewall exceptions list

Use the following step by step information to add either or both powershell.exe and monitoringhost.exe to the Windows Firewall on the Windows Server based computer that hosts Lync Server 2010 services:

Server 2008
  1. Go to Start, Control Panel
  2. Click on the Security icon
  3. Under Windows Firewall click on the Allow a program through Windows Firewall hyperlink
  4. Select the Exceptions tab on the Windows Firewall Settings dialog
  5. Click on the Add program... button
  6. Click on the Browse... button on the Add a Program dialog and locate the %SystemRoot%\System32\WindowsPowershell\V1.0 folder
  7. Select the powershell.exe file and click on the Open button
  8. Click the OK button on the Add a program dialog

    Note If the Lync Server 2010 PowerShell synthetic transaction is not being executed from the Lync Server 2010 watcher node then skip to step 12 listed below.
  9. Click on the Add program... button
  10. Click on the Browse... button on the Add a Program dialog and locate the %ProgramFiles%\System Center Operations Manager\Agent\ folder
  11. Select the monitoringhost.exe file and click on the open button
  12. Click on the OK button to conclude the Windows Firewall configuration
Server 2008 R2

  1. Go to Start, Control Panel
  2. Click on the System and Security icon
  3. Under Windows Firewall click on the Allow a program through Windows Firewall hyperlink
  4. Click on the Allow another program... button on the Allowed Programs dialog
  5. Click on the Browse... button on the Allow a Program dialog and locate the %SystemRoot%\System32\WindowsPowershell\V1.0 folder
  6. Select the powershell.exe file and click on the Open button
  7. Click on the Add button on the Add a Program dialog

    Note If the Lync Server 2010 PowerShell synthetic transaction is not being executed from the Lync Server 2010 watcher node then skip to step 12 listed below.
  8. Click on the Allow another program... button on the Allowed Programs dialog
  9. Click on the Browse... button on the Allow a Program dialog and locate the %ProgramFiles%\System Center Operations Manager\Agent folder
  10. Select the monitoringhost.exe file and click on the Open button
  11. Click on the Add button on the Add a Program dialog
  12. Click on the OK button to conclude the Windows Firewall configuration

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More information

For more detailed information on Lync Server 2010 PowerShell cmdlets:

Windows PowerShell and Lync Server Management Tools
(http://technet.microsoft.com/en-us/library/gg195783.aspx)


Lync Server 2010 Cmdlets by Category
(http://technet.microsoft.com/en-us/library/gg398306.aspx)


Lync Server 2010 Cmdlets Index
(http://technet.microsoft.com/en-us/library/gg398867)

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Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use
(http://go.microsoft.com/fwlink/?LinkId=151500)
for other considerations.
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Properties

Article ID: 2751720 - Last Review: April 16, 2013 - Revision: 2.0
Applies to
  • Microsoft Lync Server 2010 Standard Edition
  • Microsoft Lync Server 2010 Enterprise Edition
Keywords: 
kbsurveynew KB2751720
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