What is a dns error ps4?

A DNS error on a PS4 occurs when the console's internet connection cannot be established due to the domain name system (DNS) failing to resolve the website's IP address. This issue can be caused by a variety of factors, including problems with the PS4's network settings, issues with the router or modem, or connectivity problems with the internet service provider (ISP). Other common causes of DNS errors on PS4 include outdated firmware, firewall issues, and problems with the DNS server. To resolve DNS errors on a PS4, users can try to troubleshoot the network setup, update the firmware, reset the router, or switch to a different DNS server.