Yes, the simulator uses a connection to access certain functions built into the aircraft. If the simulator is working fine, everything is communicating properly and you are good to fly. Have a great first flight!!!
And NO........its sure NOT a bad thing to keep it in "Beginner mode" for a while as your speed is limited and your flight area is restricted !....some say its stupid to do that but i sure don't think it is and i know of many others thAt agree with me too........Like above.....says and slow movements of the sticks....let US all know Just how your doing too.