ssh connection issues.

Hi,
I am a new ansible user. Wanted to set up a basic environment with two nodes, one control node with ansible installed (Fedora 20) and one node (Windows 2012 r2). Ansible is installed on the fedora machine, but the following error comes when I try to ping the windows machine.

key_from_blob: EC_KEY_new_by_curve_name failed

Can i get some help in this regard ?

the supported way to handle windows managed machines is via the winrm
connection plugin http://docs.ansible.com/intro_windows.html

Thanks for your prompt response.