Apple admits the existence of some problems in the Apple TV software update process

  Shortly after the release of iOS 5.1 for Apple TV, users began to complain about the impossibility of updating the software using a physical internet connection and not wireless. The same thing happens when they try to view certain content from some third-party applications of the App Store, and Apple published a supporting document acknowledging the existence of the problem. Apple says that the problem was solved in iOS 5.1.1 and recommends users to update via Wi-Fi, if they can't otherwise, so if you find yourself in the same situation, you know how to fix everything.