Unable to connect to Internet via WiFi
Just lurched a Mac Book Air. Tried to set it up, got interrupted for a couple of weeks, am now trying to finish setting up. However, currently stucked at a point where it ask to sign in to ICloud, when I sign in, it says I need to check the Internet connection. I can't check it as it doesn't allow me to go past trying to sign in. How do I hard wire to a connection to Internet or how do I get past the sign in to check WiFi?
MacBook Air, iOS 8.3, Set up