Today, I started recieving this error code any time I attempt to access any online component. The discription is simply "An error has occured. Please try again later. If the problem persists, please make note of the error code and visit support.nintendo.com". Looking up the error code simply says to call Nintendo (which I will do tomorrow). I have tried using a wired and wireless connection, as well as port forwarding and various other potential fixes.The only thing I can think of to try is formatting my Wii U, but I really don't want to lose all of my data.
Is this something Nintendo can repair? I'm really upset since the new MK8 DLC came out today and I can't play it, not to metion Smash next week.