May 2015
You might want to make sure Fifa 15 has full access to the internet.
This article contains the ports that needs to be open:
http://help.ea.com/en/article/what-online-ports-should-i-open-for-fifa-15/
Also, please notice there's a dedicated Fifa 15 forum located in here:
http://answers.ea.com/t5/FIFA-15/bd-p/FIFA-15