EA confirmed that the game servers are currently unavailable, and which causes connectivity problems. The FIFA 18 players were disappointed of it.
Problems also have been reported in the United States, the United Kingdom and other European countries.
These problems will affect people on all consoles and also other EA games, such as Battlefield, NHL and Star Wars Battlefront 2.
But, so far, there is no exact time for EA when it will be working again, but the FIFA team has tweeted to confirm that they are working on connectivity issues.
Players have reported problems at 16:00 GMT since today and the problems continue while EA works to solve them. But, I believe that in the near future, the problem will be solved satisfactorily. Please wait patiently for a while, every players.