Apple Insider posted a story that a 91-page thread on Apple's Support Communities webpage illustrates what appears to be a significant problem with upgrading iPhone 4S and third-generation iPads to the company's newest mobile operating system, iOS 6.

Forum members report that after upgrading to iOS 6, both the legacy iPhone 4S and new iPad are experiencing disabled Wi-Fi connectivity that leaves the option to connect "grayed out." The issue appears to be affecting Bluetooth capabilities as well, with some users claiming their units are unable to pair or even recognize other devices, and show the spinning "search wheel" indefinitely.

Another set of users have the ability to turn Wi-Fi on in Settings, but are unable to connect to their local network.

  Apple iOS 6 Wi-Fi problems persist for some iPhone 4S, third-gen iPad owners