We have responded to this issue in other threads.
PS4:
https://forum.paradoxplaza.com/forum/index.php?threads/ps4-cant-link-account-and-play-online.889865/
Steam:
https://forum.paradoxplaza.com/forum/index.php?threads/unable-to-communicate.1124277/
PS4:
https://forum.paradoxplaza.com/forum/index.php?threads/ps4-cant-link-account-and-play-online.889865/
Steam:
https://forum.paradoxplaza.com/forum/index.php?threads/unable-to-communicate.1124277/