Marcelo,

Since it works when the ASCOM client launches the driver, but not when APCC launches it, that implies the COM port settings in the driver "Setup Telescope" might not match the driver settings in APCC.  The driver may be set to use a physical port, whereas a virtual or (or ReST API) is needed to connect from APCC.  Did you click the "NOW" button to ask APCC to configure the driver?

Regards,
Mike