Iphone disconnected from Wi-Fi duing ios 7 update and doesn't auto connect?

My iphone 4s is froze on the screen with the apple logo and the progress bar. I think this is because when it did the restart thing my iphone disconnected from the internet but now my problem is that i have a passcode lock on it and can't just restore it in itunes and for some reason find my iphone says that my iphone is not online. I don't know what to do and anyone who can help it would be greatly appreciated, apple won't even chat on their website because i don't know my *** serial number

Log off and restart and try whether is it working

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