this may or may not be related to the recent plugin update. I have used this excellent plugin for months and haven't changed any settings recently:
I can only login (backend hidden) when I rename the better-wp-security plugin folder. If the plugin is active, I am just redirected to the main page. Redirect works normal when the plugin is deactivated.
I checked the MySQL lockout table and could not find my IP in there. Where else should I check?