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Thomas UnderwoodBy Thomas Underwood 🕦 Updated on November 29, 2021 at 11:30 am

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:

netsh advfirewall show global StatefulFTP

Global Settings:
---------------------------------------------
StatefulFTP                            Enable
Ok.

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):

netsh advfirewall set global StatefulFTP disable

Validate

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

netsh advfirewall show global StatefulFTP

Global Settings:
---------------------------------------------
StatefulFTP                           Disable
Ok.

Learn more?

Network Triggers

YouTube video · Synchronize SFTP server files & documents

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