There are a few potential causes for your PS4 headset not working. One is that it is not properly connected to the console. Try connecting it to the console using an ethernet cable and see if that solves the problem. If that doesn’t work, you may need to replace the headset. Another possibility is that the audio jack on your PS4 is not working properly. Try swapping out the audio jack on your PS4 for a different one and see if that solves the problem. If not, you may need to replace your PS4 headset.