Quick fix: This error means WordPress cannot set a login cookie. Open wp-config.php and remove (or correct) any COOKIE_DOMAIN and COOKIEPATH constants. If that does not resolve the issue, the functions.php method below resets the cookie path directly. Seeing the message "Cookies are blocked or not supported by your browser. You must enable cookies … Continue reading “How to fix the Error “Cookies are blocked or not supported by your browser””