FYI: Conflicts with other plugins.
Trying to login to my own admin account using two-factor auth gives me this page:
Warning: Missing argument 2 for login_security_solution::wp_login() in /home/blog/public_html/wp-content/plugins/login-security-solution/login-security-solution.php on line 850
Warning: Missing argument 2 for WSAL_Sensors_LogInOut::EventLogin() in /home/blog/public_html/wp-content/plugins/wp-security-audit-log/classes/Sensors/LogInOut.php on line 11
Warning: Cannot modify header information - headers already sent by (output started at /home/blog/public_html/wp-content/plugins/login-security-solution/login-security-solution.php:850) in /home/blog/public_html/el/wp-includes/pluggable.php on line 896
I never had any problem with login security solution plugin, nor with wp security audit plugin, until immediately after installing wp-simple-firewall plugin. In all instances of using two-factor login auth via email, every time I click on the link I get this error page and have to use FTP to turn off the firewall. I have duplicated this error over a dozen times.
Just to be clear: the conflict is with the two-factor authentication link via email. It seems the authentication-related features of the conflicting plugin are grabbing some data needed by the other. The rest is Greek.
What do you think?