Be welcome to the miserable servers of EA. 

I'm in the same position, I can't play FIFA since the last update few days ago. 

Every game I lose connectivity with the server with no apparent reason. 

I think it's time to expose this issue to the official team of FIFA 20. I paid for the game as well the subscription of playstation plus to play online games.... And I can't play my favorite game because of this annoying and unreliable servers.