Recently I encountered this error. I researched and discovered that many people had the same error as me. I tried everything and almost all the instructions didn't fix it completely. I think it's related to the Touchbar. So is there any instructions to fix this problem? This incident happened several years ago. Describe the error I encountered: Sometimes it goes to the login screen and the Touchbar appears to work normally. But fingerprint doesn't work Sometimes it displays the Wifi login screen as we know