Could very well be the React is registered to the previous owner and expects to see his PC when doing an update. When a Nomadio product changed hands, the previous owner had to contact Nomadio for the registration transfer to the new owner. Now, Nomadio has made the transfer software available to all users on their website. I would go there, DL the registration software and move registration to your name. This should make it work outside of something else being wrong with the radio.