Forbidden You don't have permission to access /wp-login.php on this server

Question

I have one problem with all my WordPress\'s sites. I can access in all and navigate in the posts, pages and other. But when I go to wp-login.php I view the form

Answer 1

If you are using the iThemes Security plugin (former Better WP security) please refer to the answer provided by Mikeys4u.

Also, there is a similar thread related to this plugin on the WordPress support: https://wordpress.org/support/topic/how-to-reset-ithemes-security-plugin-to-fix-issues

Make sure you backup your database before trying any of the solutions.