The official Konami servers for PES 2012 were shut down years ago. However, the modding community has revived online play.
One major flaw of the retail PES 2012 —which the Reloaded ISO does not fix out of the box—is the lack of licenses. You have "Man Red" instead of Manchester United, "London FC" instead of Chelsea, and the dreaded "Player Name 001" for some German stars. proevolutionsoccer2012reloaded