My iPad tells me that my password for my home wifi is wrong. It isn't. My iPhone, laptop and my partner's laptop all connect with the same password and they're working fine.

I know this isn't a new problem but I can't find a solution anywhere. All I get is the same list of troubleshooting tips that don't work. I've tried switching on and off, deleting the network and reconnecting again, resetting the network settings, resetting the router, etc. nothing works!

I've heard it's an iOS 6 issue but there doesn't seem to be a resolution anywhere.

Could really use some help as 3G is hugely expensive to use all the time!