No. Our FTP server is monitored 24x7. It's extremely reliable with up-time over 99.99%. Free members can only access ftp.drivehq.com. Paid members can use both ftp.drivehq.com and proftp.drivehq.com. (SFTP is only available to paid members).
If you experience any problem, please test it with FileZilla and email us the detailed error message. Please note that the FTP service is mainly for business. Free FTP service is very limited and is not suitable for business use.