Knowledgebase Portal Home Knowledgebase Education Channels WordPress How to fix Site undergoing maintenance Toggle Sidebar How to fix Site undergoing maintenance .maintenance file is invoked on the fly doing an auto upgrade. It is a hidden file like .htaccess files. Located in the root of your WP install, you can delete it using FTP program or logging in server and select to view hidden files. 0 Users Found This Useful Was this answer helpful? Yes No Related Articles How to reset your WordPress Password via phpMyAdmin Forgotten your password and you hadn’t set up your mail settings so ‘Forgot Password’ won’t work...