Use SFTP or SCP instead.
Our official answer to any problem with FTP is don't use FTP. Ever. For anything.
FTP support has been deprecated since 2010. It is an outdated, insecure protocol that does not work very well on the modern Internet. We will not provide any support for any problems you have while using it.
If you insist on using it anyway against our advice, you're on your own. Here are some historical notes about FTP that may (or may not) help:
- FTP is disabled by default and must be enabled in two places to have even a chance of working.
- You must also use the correct FTP connection information.
- NAT devices (especially cheap residential gateway routers) can process FTP connections incorrectly, and some personal firewall software blocks FTP access. These problems generally manifest as timeouts, reset connections.
- If you are able to connect to the FTP server, but attempts to upload or download hang, then switch your FTP client from active mode to passive mode, or vice versa.