GameCenter Problem

Hi, when i try to login to gamecenter it gives me an error, i even tried changeing the password of my apple id to see if it was that but still nothing.

Heres a screenshot, sorry its in spanish because i live in spain i talk spanish and i am spanish so is my macbook.

Spanish for couldn't perform operation due to not being able to contact the server

MacBook 13" spring 2010 mountain lion 10.8.2 2gb ram

Extra info: my wifi works fine