SYSCALL returned=5 when migrating from ruby 2.2.1 to 2.2.6 or 2.4.1 (Mac Os)

[bwl21]

I tried to migrate a script retrieveing calendars from Exchange from ruby 2.2.1 to 2.2.6 or even 2.4.1 and got the messages below.

/Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/ssl_socket.rb:103:in `connect': SSL_connect SYSCALL returned=5 errno=0 state=SSLv2/v3 read server hello A (OpenSSL::SSL::SSLError)

The script works fine in 2.2.1. this is how I setup the EWSClient:

cli = Viewpoint::EWSClient.new(
   endpoint, user, pass,
   http_opts: {ssl_verify_mode: 0},
   :server_version => Viewpoint::EWS::SOAP::ExchangeWebService::VERSION_2007_SP1
                               )

What can I do?

bundle install says

Using bundler 1.9.4
Using httpclient 2.8.3
Using little-plugger 1.1.4
Using logging 2.2.2
Using mail 2.6.4
Using mime-types 3.0
Using mime-types-data 3.2016.0221
Using mini_portile2 2.2.0
Using multi_json 1.12.1
Using nokogiri 1.8.0
Using pdf-core 0.2.5
Using prawn 1.0.0
Using prawn_calendar 0.0.1
Using rubyntlm 0.6.2
Using ttfunk 1.1.1
Using viewpoint 1.1.0

This is the traceback

/Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/ssl_socket.rb:103:in `connect': SSL_connect SYSCALL returned=5 errno=0 state=SSLv2/v3 read server hello A (OpenSSL::SSL::SSLError)
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/ssl_socket.rb:103:in `ssl_connect'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/ssl_socket.rb:41:in `initialize'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/ssl_socket.rb:26:in `new'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/ssl_socket.rb:26:in `create_socket'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/session.rb:752:in `block in connect'
        from /Users/calret/.rvm/rubies/ruby-2.2.6/lib/ruby/2.2.0/timeout.rb:88:in `block in timeout'
        from /Users/calret/.rvm/rubies/ruby-2.2.6/lib/ruby/2.2.0/timeout.rb:98:in `call'
        from /Users/calret/.rvm/rubies/ruby-2.2.6/lib/ruby/2.2.0/timeout.rb:98:in `timeout'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/session.rb:748:in `connect'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/session.rb:511:in `query'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient/session.rb:177:in `query'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient.rb:1242:in `do_get_block'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient.rb:1019:in `block in do_request'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient.rb:1133:in `protect_keep_alive_disconnected'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient.rb:1014:in `do_request'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient.rb:856:in `request'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/httpclient-2.8.3/lib/httpclient.rb:765:in `post'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/viewpoint-1.1.0/lib/ews/connection.rb:103:in `post'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/viewpoint-1.1.0/lib/ews/connection.rb:81:in `dispatch'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/viewpoint-1.1.0/lib/ews/soap/exchange_web_service.rb:212:in `do_soap_request'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/viewpoint-1.1.0/lib/ews/soap/exchange_data_services.rb:503:in `find_folder'
        from /Users/calret/.rvm/gems/ruby-2.2.6/gems/viewpoint-1.1.0/lib/ews/folder_accessors.rb:45:in `folders'
        from exchange_reader.rb:57:in `<main>'