I tried to log on after the patch. I just got a message saying 'Login failed for an unknown reason. Please visit support.leagueoflegends.com for more information.'

It's an unknown reason. But ok, I'll look. Nothin'.

Tried to log in again.

'Username/password combination is incorrect, please change your password.'

K.

'Sorry your request to change your password failed.'

For some reason I'm able to be on the forums with the account I was trying to log into, but whenever I try to do it in-game it either tells me that it doesn't know why I can't log on, or that my Username/password are incorrect.