A FTP server may not respond on the first connection attempt. This may be due to a slow network or perhaps the FTP server is overloaded with other requests at the time. In order to solve this challenge, you can use a combination of the

Timeout, Connection Retry Attempts

and

Connection Retry Interval

settings for the FTP server resource. 

For instance, if you want

Managed File Transfer

to wait up to 180 seconds for a FTP server to respond, then specify 180 for the

Timeout

setting on the FTP server resource. The

Connections Retry Attempts

and

Connection Retry Interval

settings can additionally be specified to have

Managed File Transfer

continue to retry the FTP connection up to a certain limit.