It is a battle, though. In addition to some aircraft not working (not being allowed to work) I find that I am unable to get any of the vatsim clients to connect correctly. FSInn requires that I run the simulator in legacy mode with causes consistent crashes at the splash screen, and SB4 seems unable to inject traffic. I can fly and use the radio to communicate with 80 C, but I cannot see any of the aircraft.
I believe, however, that the IVAO client should work, so I will test this later and fly on that network :-)