Hello, everyone.
The launch of Nintendo Switch Online on September 18, 2018 will affect the online features of existing 2K games.
For NBA 2K, that means you’ll need a NSO membership in order to use the games’ online modes, similar to how you need PlayStation Plus or Xbox Live Gold to do the same on other consoles.
If you have any questions about this, please consult Nintendo’s FAQ about the service.
NOTE: When the NSO service goes live tomorrow users will need to do a full restart following purchase of an NSO subscription in order for it to work.