help wireless is working

Every time I install OS11 my wireless is dead at first. If I connect my computer to ethernet, reset the modem and restart the computer in that order my wireless magically starts receiving signal. It keeps the signal if I unplug the ethernet and restart the computer. Same pattern everytime I’ve installed… Any ideas why this could happen? It seems too easy to be true, after the week or so I spent trying to figure out what to do the first time.