- Plesk for Windows
In an attempt to connect to the server via FileZilla using the specific IP address, e.g. 203.0.113.2, the information that the certificate is expired appears:
A non-expired certificate is chosen in Plesk under Tools & Settings > IP Addresses > 203.0.113.2 > SSL/TLS certificate field.
The expired certificate is used in IIS for the IP address.
Connect to the server via RDP.
Go to IIS > Server_name > Sites > 203.0.113.2 > FTP SSL Setting.
Choose a non-expired certificate in the drop-down menu opposite the SSL certificate option and press the Apply button: