Hi Nigel. Welcome to justanswer.
Have you set up the google account on your phone after the reset?
Did you earlier had any google account on the phone (before the reset)?
Which computer are you using?
Once you click this link below(CLICK HERE)A file will automatically get downloaded. Check your download section, a file named ELSINORE.SCREENCONNECT will be present. Just open that file so that I can connect to your computer.