Repeated Weekend League Disconnections – Unfair Losses Despite Stable Connection

I'm facing same issue in the past week. 

1. Difficulties in starting up, sometimes it's just a blank screen.
2. Frozen screen in Lobby pages, evolution, stores...
3. It keeps showing EA server issues
4. Companion app can not log in
5. Game crashes more than 50% of the matches showing disconnection. 

I'm using LAN cable, my other games like Call of duty are fine, doesn't crash, only FC25

I have reset my router, change between wifi and LAN, still happen.