A handful of Nintendo online services will be temporarily down while Nintendo perform essential maintenance, starting on Monday 28th January at 12pm. Different functions are going to go down at different times, so have a look at the official timetable of maintenance below and plan your gaming accordingly:
Monday 28th January, 11pm - Tuesday 29th January, 5pm PT
Affected services: Nintendo DS Network Services - (Pokemon Black version, Pokemon White version, Pokemon Black version 2, Pokemon White version 2)
Monday 28th January, 5pm - Monday 28th January, 6pm PT
Affected services: Wii U Match Making, Ranking etc - Warriors Orochi 3 Hyper
Monday 28th January, 12pm - Monday 28th January, 5pm PT
Affected services: Nintendo eShop, Nintendo 3DS eShop, Wii Shopping Channel, Nintendo DSi shop
Don't worry, if anything changes VGU will keep you updated so you can still have your daily dose of gaming.