Update: All is well again – Wii U/3DS eShops experiencing issues

Update: Back up and running!

The Wii U and 3DS have both been hit with technical issues. Nintendo says that the two digital stores began encountering issues at around 12:46 PM PT, and have been ongoing since.

A message posted on Nintendo’s network maintenance/network status page reads:

Due to technical difficulties, some online service features may be unavailable. We apologize for any inconvenience this may cause.

Source