I would just like to add that I've also upgraded my IFD440 to 10.3 today and have the same issues. No position. No route upload despite the WiFi being connected. 

I believe there are several known issues with pilots in the States being unable to load plans from Foreflight and connect the controlling app so I doubt it's a SkyDemon problem. However any assistance that SD could offer from this end would be appreciated if you're in contact with Avidyne at any time. 

Thanks.