can't connect to the app

I have a first gen Instinct.  It won't connect/sync with the app or Garmin Express.  I've tried EVERYTHING including, using 2 cables, using 2 computers, deleted bluetooth connectivity with my phone and added it back, deleted the device on the app, deleted it from Express  and added it back and nothing has worked. I deleted the app on my phone and Express from both computers.  That didn't work either. The Instinct connects to the phone using bluetooth and i can see it when plugged into both computers.  Any idea why i can't connect via bluetooth or cable to the app or Garnmin Express?