The FTP protocol was introduced when network firewalls didn't exist. Using the FTP Service on a server (behind a firewall) creates a set of challenges because firewalls must workaround the FTP protocol shortcomings…

Overview

Sometimes, if using FTP & Cloud Actions with a regular FTP or an encrypted FTPS connection, Task may fail unexpectedly with a Lost connection. Disconnected from server error message.

Most likely, this happens due to firewall settings. If StatefulFTP option is set to Enable, this may be a cause of the problem. To see current firewall settings, use the following command:

Fix connection problem

To fix the FTP connection problems, simply use the following command on the local machine (not on the FTP server's machine):

Validate

To verify new configuration, see firewall settings again, by entering netsh advfirewall show global StatefulFTP command again:

Learn more?

• WinSCP · Disconnected from server
• Configure Windows firewall for a passive mode FTP server

Network Triggers

• FTP Watcher
• SFTP Watcher
• WebDAV Watcher
• Amazon S3 Watcher
• Google Cloud Storage Watcher
• DigitalOcean Spaces Watcher

Need assistance?

If you have any questions, please do not hesitate to contact our support team.