Failure to login to Apple ID through Settings
Hi folks. My Macbook Air is no longer able to access Apple ID. I can log in through a browser, but when using the Settings app I get nowhere. The password is correct (there's no red-text error message) but the window simply resets to asking for the login details again. Perhaps coincidentally, I'm also no longer able to activate the fingerprint unlock feature. The button simply slides back to grey. Coincidence no. 2: Mail now refuses to connect any of my accounts to my server, though I can access emails through a third-party app. If my Mac were human I'd shoot it in the face. Any ideas?
MacBook Air 13″, 13.4