WP developers may have seen this error
“Your connection to this server has been blocked in this server’s firewall.
You need to contact the server owner for further information.
Your blocked IP address is xxx.xxx.xxx.xxx”
it is for md_security but why it starts coming suddenly without any change in code. Im using wordpress 4+ version.
I fixed it by disabling mod security for my domain.I’m looking for a safe fix. disabling mod security welcomes CSRF security issues.