Calculating Route...

Hi

I`m preparing for a Costa Rica trip and just got started with the app. I bought and downloaded the TomTom Maps. When I enter a start point and a destination, using any address from the proposed addresses and then hit „navigate“ it just says „Calculating Route“ and the yellow traffic light blinks, but it actually never finds a route and never starts.

What am I doing wrong?

Thanks and kind regards
Stephan