dpfullwood

Hello. Using my pscan for the first time. Successfully downloaded software onto the laptop, all looks fine. Plug the pscan into the car via the OBD under the wheel. Light goes green on the pscan, shows for a second in the loader box on screen. Then comes up with the message ‘interface failed’
I tried with the car off, ignition on and car running. All the same. And then re-installed. Everything looks fine, green light flashes on the box. But get the same message.
Is it me? Any help appreciated.