Mass Effect 3 will not launch says"no internet connection or needs cd key "

@blakseven Origin app can active Mass Effect 3 on EA app. Origin app is no longer officially supported and requires workarounds. The cd key is related to Steam's version of the game + EA app. After running Mass Effect 3 via Steam + Origin app only the first time, Steam + EA app will work every other session. EA app is unable to register/verify your Steam's Mass Effect 3 steam game on its own, at this time it requires Origin first time, aka 3 launcher apps carefuly executed since EA app force uninstalls Origin app from the computer.