When Robo-FTP Server is running in "FIPS Mode" it will refuse incoming connections from clients that are unable to use strong encryption algorithms like those required by Federal Information Processing Standards or the Payment Card industry. When FIPS Mode is enabled, only connections encrypted with 256 bit AES or Triple DES are allowed.
To require FIPS Mode on FTPS connections, open the Robo-FTP Server Console to the FTP Server menu and then mark the checkbox labeled "FIPS Mode encryption" on the SSL Options tab.
To require FIPS Mode on SFTP connections, open the Robo-FTP Server Console to the SFTP Server menu and then mark the checkbox labeled "FIPS Mode encryption" on the General Settings tab.
Note: The Triple DES encryption algorithm is sometimes referred to as TDES or 3DES.