Fix: AFT_CONNECT_FTP::AFT_open_data_connection: PORT command failed – Control M

If you use BMC Control-M and have a file transfer job (AFT) setup for FTP, you may notice an error log closely related to below which eventually closes your FTP connection and fails any transfers.

Receive FTP reply error[-1]: An established connection was aborted by the software in your host machine.

Unable to get FTP reply for command PORT 10,37,24,134,254,116

AFT_CONNECT_FTP::AFT_open_data_connection: PORT command failed

Unable to open FTP data connetion

Unable to open read channel to host ‘’

Job executed with error !!!. exiting

The FTP transfer may be timing out, especially if you are transferring a large file. Try to change from active to passive FTP mode in the client.

1. Open the connection profile.

2. Click advanced on remote host definition.

3. Check FTP Passive.