Since the latest patch campaign mode in bf3 disconnects your connection to EA servers has been lost. How can this be so while playing in offline mode if you get this error you can't progress with story mode you get to a certain point and you have been diss connected from server? So I unplugged my Ethernet cable played campaign mode again this time I got message saying you are not connected to the playstation network. How I got around this was to just restart the entire leve again rather than resuming from last save point! This fixed the errors you have been disconnected from EA server. So the game goes on fine after doing this. If you still have problems then go back to an earlier mission select.