[Skype for Business] LS Data MCU events 41025 and 41026 are constantly generated after you install the May 2017 .NET Framework 3.5 Security and Quality Rollup

Le KB 4023993 est a prendre en considération si vous êtes dans le scénario suivant:

• You deploy Microsoft Lync Server 2010, Microsoft Lync Server 2013, or Microsoft Skype for Business Server 2015.

• The Microsoft .NET Framework 4.5.2 or a later version is installed (Lync Server 2013 or Skype for Business Server 2015).

• You install the May 2017 the .NET Framework Security and Quality Rollup.

Expériences vécu dans le cadre de ces scénarios:

• Shared Object Messaging (PSOM) protocol connectivity with Microsoft Edge fails.
• External users cannot use such features as PowerPoint presentations, Q&A pages, or Whiteboard sharing. 

• The Lync Server 2010, Lync Server 2013, or Skype for Business Server 2015 Front End server generates the following LS Data MCU event 41026 error.

Lien: https://support.microsoft.com/en-us/help/4023993/ls-data-mcu-events-41025-and-41026-are-constantly-generated-after-you-