NBA 2k13 online PC working for anyone?

I just bought it today for the PC... And whenever I click "Online" It does nothing at all.. and when I try to join an online association it says fails to communicate with server

Have you entered your CD key and set up an account?

Online does work for the PC this year but 2K's online support in general still leaves something to be desired. Server downtime is not uncommon. in which case you just have to try again later. If in doubt, contact 2K Support.

Yes.
I re-installed the game as well, tried everything possible.

Whenever I press the Online button.. literally nothing happens.
But if I can join someones private Online Assocation but can't use the online button option which would lead you to your profile and such.

Reinstalling the game is often the problem, since the CD key is marked as being in use. I would definitely get in contact with 2K Support about the issue at this point.

I got the same problem both times. DO you have any idea as to why the online button doesn't do anything when I click it?

I'm logged into my account on NBA 2k13
I can join an OA.. but I can't use the Online Option

Again, it's time to contact 2K Support. They are the ones to talk to when problems like that arise. It's their game, they maintain the servers and online accounts, they can help you more than anyone in the community can when it comes to issues like this.