In order to block an IP address, do the following:
- Login into your WordPress site
- Head to the WebARX settings page. (Settings > Security)
- Click on the "Firewall" tab
- Find the "Block IP List" textarea.
- Insert the IP addresses, each on its own line, into the textarea
- Once you are done inserting all of the IP addresses that need to be blocked, scroll down and click on the "Save Settings" button