Lync 2013 on windows server 2012 R2 Known issue | Event IDs 32402, 61045

 

Event IDs 32402, 61045 are logged in Lync Server 2013 Front End servers that are installed in Windows Server 2012 R2

Event IDs 32402, 61045 are logged in Microsoft Lync Server 2013 Front End servers that are installed on computers that are running Windows Server 2012 R2.
Additionally, you experience the following symptoms:

  • Microsoft Lync 2013, Microsoft Lync 2010, or Microsoft Office Communicator 2007 R2 clients cannot participate in conferences by using the Lync Server 2013 or Lync Server 2010 conference modalities.
  • Lync 2013, Lync 2010, or Office Communicator 2007 R2 clients that are not enabled for the Microsoft Exchange 2013 Unified Contact Store (UCS) do not display contact information.

When this problem occurs, the following events are logged in the Lync Server 2013 event log:

Event ID 32042

Log Name: Lync Server
Source: LS User Services
Date: 10/15/2013 4:02:05 AM
Event ID: 32042
Task Category: (1006)
Level: Error
Keywords: Classic
User: N/A
Computer: LyncFE01.contoso.local
Description:
Invalid incoming HTTPS certificate.
Subject Name: LyncFE01.contoso.local Issuer: Contoso-CA
Cause: This can happen if the HTTPS certificate has expired, or is untrusted. The certificate serial number is attached for reference.
Resolution: Please check the remote server and ensure that the certificate is valid. Also ensure that the full certificate chain of the Issuer is present in the local machine.

Event 61045

Log Name: Lync Server
Source: LS MCU Infrastructure
Date: 10/15/2013 4:02:20 AM
Event ID: 61045
Task Category: (1022)
Level: Error
Keywords: Classic
User: N/A
Computer: LyncFE01.contoso.local
Description: The DATAMCU was not able to stay connected to the Front End over the C3P channel (HTTPS Connection).
The Web Conferencing Server failed to send C3P notifications to the focus at https:// LyncFE01.contoso.local:444/LiveServer/Focus.
Cause: The Front End may not be running correctly or may be unreachable over the network (broken HTTPS connection) from the MCU. Unavailability of The C3P channel affects conference controls, and can also prevent users from joining, starting conferences.
Resolution: Verify that the Front End server is running correctly and that network connectivity and an HTTPS Connection can be established between the MCU and the Front End server.

 

Resolution

  1. Click Start, type regedit in the Start search box, and then click regedit.exe in the results list.
  2. Locate the following registry subkey:

    HKLM\System\CurrentControlSet\Control\SecurityProviders\Schannel

  3. Right-click Schannel, and then click New DWORD (32-bit) value.
  4. Type EnableSessionTicket, then press Enter.
  5. Right-click EnableSessionTicket, and then click Modify.
  6. Change the existing value to 2, and then press Enter.
  7. Exit Registry editor.
  8. Open the Lync Server Management Shell.
  9. Run the following Lync Server PowerShell commands in the given order:

    Stop-CsWindowService
    Start-CsWindowsService

image

 

and that’s it 🙂

Reference:

http://support.microsoft.com/kb/2901554/en-us

 

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About Hany Abd El-Wahab

Hany has 9+ years of experience as IT Solution Architect, Consultation and Training. through a broad range of vendors and technologies (Microsoft, VMware, EMC, Symantec and more). Also certified (Microsoft x4 MCSE, 2x MCITP, 15x MCTS), (VMware VCP-DCV, x2 VCP, 3x VCA, VCSTP), (EMC ISM, VNX-IE), DELL(DCSE-E, S) and more...
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