I told you the other day that iOS 6.1.3 it generates problems with the autonomy of the battery, I asked you what problems you encountered and now I tell you that on the discussion forums of Apple Lossless Audio CODEC (ALAC), many people complain inability to connect to networks Wi-Fi after installation iOS 6.1.3. This problem has appeared for many since the release of iOS 6.0, it disappeared in iOS 6.1.2, but it reappeared, and now users can no longer connect to Wi-Fi networks because the toggle to activate connectivity cannot be used, and Apple knows this.
I also have the same problem, I updated to IOS 6.1.3, WIFI worked for a few days and then grayed out. Now it is grayed out & not reverting back. I tried resetting network settings but it aint working, There is definitely a bug in the new IOS 6.1.3 Permanent loss of connection to the Wifi after updating to 6.1.3, in the room where the catch has ceased to catch. In the room where the total fixed antenna signal loss. I have the very same problem... Bluetooth is stuck – whirring round and round and the wifi is greyed out. Have tried everything suggested on http://support.apple.com/kb/TS1559 and everything still the same…. Also battery loss far too fast. Was fine before.
If you encounter this problem, there are two ways that could solve it. The first involves resetting the network settings by going to Settings>General>Reset and pressing the Reset Network Settings button. The second involves performing a restore without using a backup, so you will have to reinstall all the applications after connecting to the iCloud account and choosing the set as new option.
