Important: Please read the Qt Code of Conduct -

Can the SSL certificate check during Qt installation be disabled? I am behind a firewall and cannot install :(

  • QSslSocket: cannot resolve TLSv1_1_client_method QSslSocket: cannot resolve TLSv1_2_client_method QSslSocket: cannot resolve TLSv1_1_server_method QSslSocket: cannot resolve TLSv1_2_server_method QSslSocket: cannot resolve SSL_select_next_proto QSslSocket: cannot resolve SSL_CTX_set_next_proto_select_cb QSslSocket: cannot resolve SSL_get0_next_proto_negotiated QSslSocket: cannot resolve EC_KEY_new_by_curve_name QSslSocket: cannot resolve EC_KEY_free
    [18759] Warning: QSslSocket: cannot call unresolved function EC_KEY_new_by_curve_name
    [18759] Warning: QSslSocket: cannot call unresolved function EC_KEY_free
    [19362] Warning: LicenseManager: Ssl error: "The issuer certificate of a locally looked up certificate could not be found"
    [19362] Warning: LicenseManager: Ssl error: "The root CA certificate is not trusted for this purpose"
    [19362] Warning: LicenseManager: Ssl error: "No certificates could be verified"
    [19362] Warning: Error during sign up: [ 6 ] "SSL handshake failed"
    [19362] Warning: Unhandled connection failure: 6

  • @Derrick-Johnson When I had issues with my company firewall/ssl certificates I downloaded the offline installer and it worked fine.

    From the page:, click the "view all downloads" scroll down until you see the offline installers and pick the one that you need.

    When you run the installer it looks the same (i.e. type in your username / password, but it does not need to do the ssl handshaking).

Log in to reply