registration to get the SHAREKEY

I downloaded the sw, I filled aout my coordinates and I sent the request for registration.
The system returns the closest airport coordinates, I accept them and then the software starts looking for airplanes.
My dongle works very well, I have at my location at least 4-6 airplanes but the FR software seems not to communicate with
my dongle unless I am getting the sharekey. Any idea how I can get that?