Ironically/pathetically I tried one last time to get this thing working before using it as a permanent door stop using my old Windows Phone and she is finally working - only to tell me that she is shutting down for good this month lol
I have been using my four Invokes for several years and about a month ago one of them started saying "something went wrong, you'll need to press the microphone button for 5 seconds to start setup again." and stopped working. The other three worked and still work fine. I have tried to set the one up many times and have hunted on the internet. May I ask how you got it working? After I read your reply, I tried two different windows phones and the Invoke set up didn't work with either one. The Invoke does still show up as listed on both of my windows phones, under the Cortana "hamburger menu". Each attempt has me re-sign in with my MS account and approve HP access to my MS account check box, but then at some point I get the "can't access the service" error.
Any input would be appreciated.