[Return code] SEC_I_RENEGOTIATE [Description] 
The remote party requires a new handshake sequence or the application has just initiated a shutdown. Return to the negotiation loop and call AcceptSecurityContext (Schannel) or InitializeSecurityContext (Schannel), passing empty input buffers. Renegotiation is not supported for Schannel kernel mode. The caller should either ignore this return value or shut down the connection. If the value is ignored, either the client or the server might shut down the connection as a result.