I bought an Apple tv3 today and set it up which was fine.
I tried to connect Airplay but the code number remains unknown. So I went back to go and reset everything. I tried a Airplay again but I remain code-less. How do I get my code??
Welcome to the Apple Community.
My concern is that AirPlay shouldn't need a password by default. However you might try clearing any that is there in settings > AirPlay
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