Over the weekend many users were not able to get into online modes
(some couldn't get to any modes at all). 2K Sports worked all weekend to resolve the issue, which seems to be fixed for some, but not for everyone.
Ronnie mentioned they are
still working on some NBA 2K14 MyTeam and Private Team-Up issues.
Based off of feedback from email and Twitter, it seems the servers are very up and down, so let us know what you are seeing here.