Connection loss issue

When i am playing on Arena or Warzone, right at the end of the game (it doesnt care if my team wins or loses) just after of returning to the menu around 5 seconds after appears the “Connection lost” message, sometimes the game counts me the match and sometimes it doesnt or i just get banned, but the message appears only when i reset the game, and then i cant play.

I am the only one with this problem?