Nintendo revealed earlier today that The Nintendo Network will be undergoing some emergency maintenance on Monday, which will effect certain Wii U, Wii, 3DS, and DS games and services.
First off, the 3DS and Wii U eShops, the Wii Shop Channel, and the DSi Shop will be undergoing maintenance from 12:00 PM (Pacific Time) Monday afternoon until 5:00 PM (Pacific Time) Monday evening, so you might not be able to shop for various digital titles during that time.
Owners of the Wii U game Warriors Orochi 3 Hyper should note that its online servers will be undergoing maintenance from 5:00 PM – 6:00 PM (Pacific Time) Monday evening, so they shouldn’t expect online match making and rankings to work during this hour.
Lastly, Pokemon fans will want to know the servers for Pokemon Black and White and Pokemon Black 2 and White 2’s online DS services could potentially be down from 11:00 PM (Pacific Time) Monday night until 5:00 PM Tuesday evening.
I will admit that having these services down or at least inconvenienced during these times can be a pain, but these downtimes are implemented to keep the network in tip-top shape, so this needs to be done. Also, considering most people who’d be taking their games online have either work or school to deal with during these hours, Nintendo definitely made the best scheduling choices possible in this situation.