PS4 error code (CE-41489-6)?

Since last night, I can't log in to PSN anymore. It comes then constantly "error code (CE-41489-6)" and allegedly the PlayStation Network Server are overloaded but what is wrong. Router restart also helps nothing and the latest version I have also installed. I thank you in advance

Ever tried to log in with the psn app? Had it ever think synonymous and app then did ps4 made and then had made connection test after some time, it went again

Try ps out and then disconnect the Internet and then turn it on Internet testing then it would have to go again