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SSL error due to daylight saving?

  • Hi all,

    I have a problem with a SSL handshake since the weekend, as the time has moved to summer time due to daylight saving.

    Our tool is working fine on Linux and Windows, but on Mac we are getting two errors:

    The certificate has expired
    SSL handshake failed

    This can be reproduced on every Mac. The server certificate is valid until 2016 and is working fine. Also confirmed by the provider.

    Can you help? Or do you know the reason?
    You can download our precompiled client from

    Just run with the demo parameters:
    ./unclient -k demo -pc test_product -v 1.0 -log -

    Just a side note, Windows and Linux client are compiled with Qt 4 and the Mac client with Qt 5.
    Source code of the client can be found here:

    Thanks a lot!

  • Nobody? Any guesses?

    I already tried to update the OpenSSL lib on my Mac. I succeeded, but it still shows up the same error - even with the latest OpenSSL library.


  • Qt 4.5.1 seems to solve that problem. At least for the dynamic build.

  • Lifetime Qt Champion

    Hi and welcome to devnet,

    Currently just had a segmentation fault on OS X, will need to take a deeper look

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