Internet not working
I've recently purchased and Airport Express (version 7.6.5) router. I've got an Apple TV (3rd generation) connected, Iphone 6 and a MacBook Pro Retina. The Apple TV and the Iphone connect to the router but they have no internet connections even though the Wi-Fi indicator has full 4 bars. My MacBook Pro connects to the router and the internet is working perfectly on that device. I've tried connecting the Apple TV through an ethernet cable and it does no difference.
Also, all these devices worked fine on my other router before i bought the Airport Express.
MacBook Pro (Retina, 13-inch, Late 2013), OS X Mavericks (10.9.5)