UCWA crashes Message:CryptAcquireContext failed to acquire key container RRS feed

  • Question

  • Hello,

    we are facing the following issue:

    UCWA on a Skype for Business Server 2015 constantly crashes with the following error:

    Exception Details. Exception Type:System.ComponentModel.Win32Exception

    Message:CryptAcquireContext failed to acquire key container

    This is a fresh install on Windows Server 2016 into an existing Lync 2013 deployment. No users have been migrated so far.

    I installed the 01/19 CU but that brought no success.

    Also checked certificates, private key permissions, certificate trust and CRL availability.

    To be honest I'm out of ideas...

    Any help, tips, etc. would be highly appreciated!



    Wednesday, January 23, 2019 4:02 PM

All replies

  • The issue was finally resolved.

    It was an incompatibility with Framework 4.7.1 and Skype for Business RTM bits...



    Saturday, January 26, 2019 12:32 PM