same problem here..
![Evil or Very Mad :evil:](./images/smilies/icon_evil.gif)
you cant do 30sec intervals on a trainer for 10' SEK! realy bad! I have same problem with my Vortex smart but this one was 7' SEK cheapier, thought the Drivo was mutch better.
Next year I Think I sell my Drivo and by a Kickr power instead.