Timeout detected

If you are getting this error, first try to set longer timeout interval.

If this does not help and you are getting the error while logging in or while initiating file transfer:

If you are getting the error with the FTP protocol (on a control connection) when finishing a lengthy transfer:

  • A reason is typically a broken firewall/proxy/NAT that aborts the FTP control connection as it sees no traffic during the file transfer. Note that there’s no way for WinSCP to keep the control connection alive during the transfer. It would violate the FTP protocol specification.