"Unable to Calculate Route to destination." errors

[Hello1024]

I've got a Garmin c510t, and it usually works great most of the time. The problem is about every 50 miles while driving a route it will say "Unable to Calculate Route to destination." (with that odd capitalisation), and the only choice is OK. When you choose OK it will delete the route.

It seems to happen even on straight roads when there are no turns it's asking for, and happens even though the route has already been calculated and I've been following it for miles.

I'm not doing anything ambitious like going on ferries or anything either - just standard roads.


I tried google and even it didn't know - has anyone here ever had this before?

[tanda]

Hi, I have a TomTom ONE, If I save a destination say in a car park, as a favorite, and try to navigate there at a later date, I get the same error, because the car park, is not on the road, so TomTom, can't navigate me there, I have to stop In the entrence of the car park, and save it there. ??Is this any help to you, with your sat nav?
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Audi A3 Sline sat nav

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