PES 2014 online issues resolved on Xbox 360, update now available

Konami has announced that a new update is now available that remedies all online issues affecting the Xbox 360 version of PES 2014, restoring full online functionality to the game.
                                                                     
The update can be automatically installed from within PES 2014, and delivers an online mode and Master League Online service, and also rectifies previous issues with updating the game via Konami data-packs.

A full 11-Vs-11 Online mode is currently in beta and will be available in the coming weeks. Additionally, users can expect to see another Data Pack update in November that will include over 800 player face updates, updated rosters and improvements based on user feedback.

Further DLC updates created to bolster the performance of the football title will also be announced shortly.

Source: Press Release