It is possible, that a recent patch may have stopped your chat from working and a new patch is required to fix it.
Step 3: Right-click your sound card and select Update driver.
Outside of that, you just need to ensure that your playback and input devices your speakers and microphone are correctly set and you should be good to go.
Now check whether the voice chat issue is resolved or not.
If this happens to be the issue, simply roll back to a previous update.
If this is not the case, edit your settings so as to enable communication with everyone.
Get the latest patches whenever available.
Adjust DNS Settings Listed down below are the steps that you can follow to adjust the DNS settings on your PS4 console.