I got my sons a Wii U for Christmas. I initially tried creating my own NNID and then tried creating one for my oldest. Due to the Dec 25 network issues, neither IDs could complete. When attempting to create a new ID with the same name, it says "Already in Use". When attempting to link an existing an error code appears. When attempting to log in at miiverse.com it says that we must first complete the setup on the Wii U.
Many hours later I created a new NNID for my next oldest boy and it worked. We also updated his 3DS and linked it to the new ID. Did the same for my youngest.
Tried again with both of the two original NNIDs and got the same results ... error. I am thinking those IDs got interrupted by the outage earlier and the software doesn'thave the ability to "resume" an interrupted creation.
Any way to blow them away and recreate? Or any other suggestions?