Even though the iOS 6.0.1 has been making waves in the mobile sphere, not every device is can make full use of all the iOS 6 features, especially the Wi-Fi option.
According to ZDNet, the iPhone 4S has run into a bit of a problem where the Wi-Fi option is completely grayed out and makes Wi-Fi unavailable for many iOS 6.0.1 users.
Even though majority of the complaints are coming from iPhone 4S users, the problem isn’t limited to iPhone’s 4 series handsets. The problem has also persisted for other iOS 6 users on other iDevices as well. As usual, the common solution from Apple has been to reboot and retry.