Re: Link2EA not connecting.
@Cherrydoyen Does this happen if you open Steam and Origin or the EA App (whichever you're using) as an admin before launching Sims 4? You can right-click on each shortcut and select "Run as administrator."
Please also let me know whether this happens if you try to play while your computer is completely offline. You can sign into the game launchers and put them in offline mode before disconnecting.
I'd like to know which antivirus you use as well.