The reason for the connection error.
enum Efl.Net.Control.Access_Point_Error { none: 0, out_of_range, pin_missing, dhcp_failed, connect_failed, login_failed }
typedef enum { EFL_NET_CONTROL_ACCESS_POINT_ERROR_NONE = 0, EFL_NET_CONTROL_ACCESS_POINT_ERROR_OUT_OF_RANGE, EFL_NET_CONTROL_ACCESS_POINT_ERROR_PIN_MISSING, EFL_NET_CONTROL_ACCESS_POINT_ERROR_DHCP_FAILED, EFL_NET_CONTROL_ACCESS_POINT_ERROR_CONNECT_FAILED, EFL_NET_CONTROL_ACCESS_POINT_ERROR_LOGIN_FAILED } Efl_Net_Control_Access_Point_Error;