If it was working before, it should be upgrading, unless the voltage got reversed and something got damaged. Try re-powering the power supply before starting the PC program. There is a window when the older DRS software looks for an IP address and maybe you are somehow missing it. If it still doesn't work, I would recommend sending the dome into the service center to have it evaluated. It is VERY important that your PC have no anti-virius programs or firewalls up that might block the programming. You might also try using a hub in the middle of the connection or using a different network cable.