According to the official EA help site, the latest firmware update for the PlayStation 4 which is mandatory for you in order to unlock many features of the console, including online play is causing stability issues while playing games on a lot of launch units.
The issues can range from freezing/crashing to connection time-outs etc on the PS4 consoles. Since these issues are currently firmware related, a new update is the only way to fix it, according to EA. Sony is aware of the issues and are currently working hard on releasing a new update which is likely to fix all these issues.
We hope Sony is able to rectify these issues asap and we’ll keep you updated as more details are revealed.