You can’t change the IP address of your domain because this would deactivate the WAF. Once the WAF was activated, your domain had its IP address (or A record to be precise) changed to the 'Firewall IP address' so the WAF could protect your website. If you’re used to connecting to your domain by navigating to it may no longer work if the FTP record is pointing to your domain.

If you are using cPanel or Plesk, that’s also the IP address these services are installed. It’s where all the content for your website lives and where you will FTP/SFTP/SSH into to manage your website files. The 'Hosting IP Address' belongs to your hosting provider. In case you have more than one domain protected, make sure you’re indeed on the Settings page of the correct domain. There, you’ll see a box containing both IP addresses, just like this image: There are two IP addresses important on your WAF configuration: the 'Hosting IP Address' and the 'Firewall IP address' both can be found on the main page of the WAF dashboard. A review of your DNS records and some small changes can resolve these issues. If not done carefully, these DNS changes can affect connectivity to other non-website services such as Mail, FTP/SFTP/SSH or cPanel/WHM. Specifically, one or more A records are added to the existing configuration, or an existing one’s are modified.

To accomplish this, a change is made to your DNS settings. The Sucuri Firewall functions as a reverse proxy, filtering all incoming traffic through the Sucuri network, parsing good requests from bad requests.

FTP/SFTP/SSH, Mail, cPanel/WHM, Plesk or WebSockets Not Working.

“Failed – Network Error” when Downloading Files.

Testing the WAF Before Changing the DNS.

Change Hosting IP (Migrating Web Hosts).

Godaddy whm ftp filezilla