via: http://raspberrypi.stackexchange.com/questions/37920/how-do-i-set-up-networking-wifi-static-ip The Raspbian released in May 2015 changed the way networking (and particularly WiFi) works. This applies to the current Foundation releases ofRaspbian Jessieand the lastRaspbian Wheezy 2015-05-05(...
These steps should continue to function with Raspberry Pi OS (Raspbian) Buster. There has been no major changes in the way OS handles its DHCP client. Cheers, Emmet Reply LGG6_Master on November 19, 2021 at 3:01 pm I did this on the new raspberry pi os (raspberry pi 4 4gb ram)...