I was setting up FTP website on IIS and while connecting the same I ended up receiving a FTP error below:

Command:	TYPE I
Response:	200 Type set to I.
Command:	PASV
Error:	Disconnected from server: ECONNABORTED - Connection aborted
Error:	Failed to retrieve directory listing

If you have a similar problem with Filezilla, and the problem persists even when the Windows Firewall is disabled, here is what you need to do:

To address this FTP error, follow below steps:

1. Open Filezilla, go to Edit -> Settings
2. Click on Connection -> FTP: Choose Active
3. Click on Connection -> FTP -> Active Mode: Select “Ask your operating system for the external IP address”
4. Click on Connection -> FTP -> Passive Mode: Choose Fall Back to Active Mode
5. Press OK.

Try connecting to your FTP site once again.

Enjoy!!