First the good news - I have the latest firmware and have found the route recalculation works well. Today I tested it by ignoring a left turn on my route. I took a different road so that I would join up with my planned route a mile further on. The 820 initially asked me to do a U turn but as I re-approached my original route, it realised and directed me back to join that route.
Now the bad news - I have a different problem. On two occasions in the past week, the 820 has briefly said 'Off Course' when I'm not off course. It has then very quickly said 'Proceed to XXX road' (where XXX is the name of a road from much earlier in the course). Even though I am continuing to follow the course, it will not recognise this and simply keeps saying 'Proceed to XXX road'.
I have tried stopping navigation and then re-selecting the course. However, it then still tries to direct me to XXX road and won't seem to recognise that I am actually on the course.
The map continues to move and I can actually see my course on the screen and continue to follow it visually. However, the navigation prompts don't come up and the 'distance to next' etc doesn't work.
Has anyone else experienced this and/ or have a solution?
The first time was 15 miles into a 100 mile sportive - which was particularly annoying.
Thanks
Dave