It would seem that Nintendo have very recently banned some users in the 3DS modding community. Multiple reports on sites such as Reddit and GBAtemp.net have cropped up with modders stating that they’re receiving an Error Code 002-0102 — that says “access to online services has been restricted by Nintendo.” No official reason for the ban has been given. The Netflix, Hulu and Youtube apps on their systems are locked and cannot be used. Friend Lists have also reportedly been rendered unusable following the ban.
Although Nintendo are yet to release a statement for the recent banwave, the most likely reason for their action is to crack down on the use of unofficial homebrew and firmware on 3DS.