make sure the USB cable / data cable is plugged before starting up the posbox , if everything goes well the you will receive the ip / mac address if nothing happens then you can connect the posbox to monitor and log in to the OS default username : pi default password : raspberry then type ifconfig and see the ip address (you can make it fixed ip address) then from your pc browser go to ip:8069 you should see the posbox configuration page and see all attached devices / status for each one .