I am using foreman 1.6.1 to work with puppet 3.7. I have installed foreman-proxy, foreman as well as puppet server (with a name of 'foresolo.com') on a same server. And now I am trying to add the server (foresolo.com) as one of the smart proxy via the foreman webUI. I met the following error:

"Unable to save
Unable to communicate with the proxy: ERF12-2530 [ProxyAPI::ProxyException]: Unable to detect features ([OpenSSL::SSL::SSLError]: SSL_connect returned=1 errno=0 state=unknown state: unknown protocol) for proxy https://foresolo.com:8443/features
Please check the proxy is configured and running on the host."

Any idea on that? Thank you very much!