Nintendo will be holding extended maintenance for various online services over the coming days.
On Wednesday 7th May (5:55PM) to 7th May (7:00PM) PT, online play for 3DS titles will be unavailable. Likewise, on 5th May (7:00AM) to 5th May (1 PM), online play and connectivity for Pokémon X and Pokémon Y will be unavailable.
To see a list of scheduled and extended maintenance, visit the official Nintendo Website.
What online 3DS games are you playing at the moment?