Same here..........
I updated both my iPad3 and iPhone 4S to iOS 6 the day it was released. The iPad is actually working flawless. The iPhone is another story. It had trouble connecting to wifi, but everything else was fine.
Now with this iOS 6.0.1 update....... Forget it!!! I feel like I'm back with android by having all these equipment problems. Now the iPhone "WON'T" connect to any wifi at all, no matter what the settings are. "PLUS" now it has trouble using the regular 3G data service also. I can barely access anything on the Internet. The iTunes Store is another one that it won't connect to, no matter wifi or 3G. I have 36 apps that say they need to be updated and I can't access the iTunes Store to do it at all. I can't even access the store to download a new app either! Even the Netgear N600 router that my girl has, I can't connect to with the iPhone. Even though it had no trouble with iOS 6. The router is also updated to the current firmware version.
I'm afraid to update the iPad 3 to iOS 6.0.1 because of all the issues I'm having with my iPhone 4S.....
I feel like I'm back with android with all the equipment trouble that I've had with this iPhone.
I've never had any trouble before with apple products. It just seems like lately, there's been nothing but trouble with them.....