Finally, Parent Control is put to good use.
If you read my Nintendo Land review, I mention that in my experience that the game freezes my Wii U system twice. Interestingly, I have no problems with Nintendo Land whenever I play a different user Mii that doesn't set up it's Nintendo Network ID yet. Nintendo Network gains access to Miiverse and other online service such as the Nintendo eShop and Netflix. This means that the Miiverse, while a terrific Wii U feature, is responsible for Nintendo Land's issue.
When Nintendo Land froze on me for the third time, I angrily said to myself, "That's it! Miiverse gets a time out until an updated patch arrives!"
I just don't know where exactly to disable Miiverse. Then it hit me, I could use the Wii U Parent Control. I tap twice on Parent Control icon, make a simple 4-digit password, go to Parant Control Settings, scroll down to Miiverse, and tap "Restricted posting and viewing."
With this setting, I can long haul Nintendo Land without any issue and be able to go to the Nintendo eShop and Netflix.