Using GUI to interact between xPC Target and host machine?

I used the code from Mathworks (<http://www.mathworks.com/support/solutions/en/data/1-18QFF/>) and changed the address and ports to the actual values. I then ran the GUI just to test the connection and I noticed that even when my host machine is not connected to the target PC, pushing the "Connect To Target" button showed a successful connection. This does not makes sense and implies that the feedback is not working correctly? Does anyone know what it wrong? For those who don't want to run MATLAB, here is the "Connect To Target" code they used in the GUI:

function connect_Callback(hObject, eventdata, handles)
set(handles.Status,'String', 'Status: Connecting.......'); drawnow;

% Set TCP/IP connection settings
address = get(handles.ipadd,'String');
port = get(handles.port,'String');
setxpcenv('TcpIpTargetAddress',address,'TcpIpTargetPort',port);

try
    handles.tg = xpc('TcpIp',address,port);   % Create xPC target object
    set(handles.download,'Enable','on') % Enable the Download push button
    set(handles.Status,'String', 'Status: Target connection established'); drawnow;
catch
    set(handles.Status, 'String', 'Error: Target connection could not be established'); drawnow;
    errordlg(lasterr);
end

% Update handles structure
guidata(hObject, handles);

[Matt Kindig]

After your xpc() function, add

xpctargetping();

What does this function output?