Connection lost bug after game in pc

This is happening more than 5 times this week. I'm winning the match but after it says you lost connection to ultimate team and it says im lost the match. It is frustrating more than you can imagine. This is something worse than anything this game has with bugs. It can happen in any game mode. I was considired one more lost in weekend league. I'm winning but getting considered lost in knockout royalty tournaments and cant get through. Please fix this issue before inventing new market packs.