edge 830 routes

Mine guides me back to the point where I departed from the planned route.

As far as I remember: if you ignore the turn request, it will recalculate, but it takes a very long time and if you are in a unknown area, you will perhaps have to ride some additional kilometers. A Fenix 6xPS for example, is recalculating very quickly.

Long to start recalculating? 

Yes, very long. When I leave the route due to a deviation the 830 wants we to turn back a lot of time instead recalculating the nearest way to the original route. An when I come back to the route ignoring the u-turn requests the 830 wants me to turn to the point where I left the route. Very annoying. The re-routing function doesn’t work at all.