Sorry to hear you're having trouble with Fifa. The main thing to ask is if you're getting poor connection other than Fifa? If you're seeing the same issue with other games it would eliminate the issue being with the EA servers.
Also how are you connected to the hub? Wired or wireless?
You can find some helpful information using a search engine etc if you're unsure how to run a trace route. Have you contacted EA about this problem? If it's just happening on FIFA14 pro club's on the 360 it does suggest an issue at their end.