Recently we reported that 2K Sports had announced that would be closing down their servers
for their http://www.trueachievements.com/NBA-2K11-xbox-360.htm
However, recently a short post has quietly appeared on the 2K Sports news page
confirming a reversal in this decision and announcing that the servers would be remain available until April, 2012.
It is worth making a note of the final paragraph in the statement. With the 2K10
and earlier titles, a number of features on Xbox LIVE will still be available, including match making and leaderboards. This would imply that those related online achievements should still be attainable, but that has not been confirmed at this time.
As outlined in the NBA 2K11 manual, online multiplayer support for NBA 2K11 was scheduled to be turned off in November 2011, but 2K Sports has decided to leave servers for NBA 2K11 on until April, 2012.
Here is the list of games that are currently functional as of 12/1/2011:
NBA 2K12 and NBA 2K11 / MLB 2K11
NHL 2K11 (Wii), NHL 2K10 (360/PS3)
All Last Edition Titles (Top Spin 4, BIGS 2, etc.)
All Series With No Revision - NFL 2K5, APF 2K8, CH 2K8
For the discontinued 2K10 and prior 360 titles, match making and leaderboards on LIVE will still be available, but the additional features we offer (leagues, sports ticker, lobbies) will not be available.
If you're a fan of the 2K Sports titles listed, it might be worth trying to get those online achievements wrapped up before the closure in April just to be certain.