If you are experiencing DNS error on your PlayStation 4, there are a few things you can do to fix it. First, make sure that your PlayStation 4 is up-to-date with the latest security patches. If you have not done so recently, go to the PlayStation Network website and update your system. If you have a PS4 Pro, make sure that it is updated as well. Finally, try resetting your PlayStation 4’s DNS settings if they have not been updated in some time. This will clear any errors that may have been caused by the new security patches.