I was never able to send commands over wifi either. I always had to have the adapter plugged into the computer and connect over serial/usb. The wifi utility you downloaded has an advanced tab that works just like teraterm. Just type a command in the text box and press <return> to send it.. I forget the details now, but I think you start sending commands by typing $$$ and then be sure to type "save" when finished... Just another option..