I have a Forerunner 965 that I use on a few different bikes, so with 2 Edge 930s and one Edge 940. The extended display feature works for a few weeks at most, then it stops working, by which I mean it will start to connect to the Edge device, say its connected, but then almost as soon as the data screen comes up it goes back to the page that says "Exit Extended Display". It's really frustrating because it seems like it'll just stop working out of the blue and then I have to reset each device and start over pairing them all. (And I have all of the firmware updates done on all devices!). Also, "Auto Connect" is selected on the 965 and I will sometimes try to manually connect the Edge device as well, but that doesn't see to help ever.
I expected to see more issues regarding Extended Display on this forums, but I don't see much, so maybe it's not a common problem but I've tried everything I can think of and it keeps happening over and over.
Any ideas??