Hi @Balentinezz.
How is your PlayStation currently connected to the internet? Are you using wifi, or is it connected with a network cable? If you're using wifi, I'd definitely suggest trying a network cable instead if possible. That way we can eliminate any sort of potential wifi interference as a possible cause of the connection issues.
I'd also recommend running through the basic network connection troubleshooting steps over at the EA Help website as well when you can.
/Kent