Maintenance mode is only shown to visitors who are not logged in. The easiest way to check things yourself is view your site with a different browser type than the one you’re logged in with (i.e. if you’re logged in with Chrome, view the site in Firefox or Internet Explorer or vice versa).

Alternatively, you can log out or view the site in incognito/private mode with an instance of the same browser type.

The plugin returns a ‘503’ status with ‘retry later’ HTTP header when in maintenance mode. This lets search engines know that your site is temporarily down and to come back 24 hours later.

Every once in a great while other plugins installed on a system can interact with Maintenance Mode to prevent access to wp-admin. If you find yourself in this unfortunate situation, use the maintenance mode manual override.

Simply add the following line to your wp-config.php file:

define(‘EASY_PIE_MM_DISABLE’, true);

Afterward either uninstall or reconfigure the conflicting plugins.

If you aren’t comfortable doing this or are unsure how to do this, please contact me and I’ll be happy to walk you through the process.

This is most likely due to your browser’s popup blocker. Click on the Preview Changes button and look for an indication in your browser’s control bar that a popup has been blocked. Click on this indication to allow future popups to go through then retry.

Please capture as much information you can about your system, specifically use the error log to gather new information if you are comfortable. The EZP Error Log Guide outlines how to do this.
Then, please let me know what’s going on, with as much detail as you have.