Failed connection for data socket. Reason: ETIMEDOUT - Connection attempt timed out.

[support@royell.com]

Client gets this error;

2023-03-07T18:59:05.667Z DV [File-based Authenticator] impersonation_token: { username: "", home: "" }
2023-03-07T18:59:05.667Z << [FTP Session 4 64.184.153.187 ext-tkmachine] 230 Login successful.
2023-03-07T18:59:05.686Z >> [FTP Session 4 64.184.153.187 ext-tkmachine] PWD
2023-03-07T18:59:05.686Z << [FTP Session 4 64.184.153.187 ext-tkmachine] 257 "/" is current directory.
2023-03-07T18:59:05.699Z >> [FTP Session 4 64.184.153.187 ext-tkmachine] TYPE I
2023-03-07T18:59:05.699Z << [FTP Session 4 64.184.153.187 ext-tkmachine] 200 Type set to I
2023-03-07T18:59:05.717Z >> [FTP Session 4 64.184.153.187 ext-tkmachine] PORT 192,168,1,176,195,162
2023-03-07T18:59:05.717Z << [FTP Session 4 64.184.153.187 ext-tkmachine] 200 PORT command successful.
2023-03-07T18:59:05.730Z >> [FTP Session 4 64.184.153.187 ext-tkmachine] MLSD
2023-03-07T18:59:05.730Z << [FTP Session 4 64.184.153.187 ext-tkmachine] 150 Starting data transfer.
2023-03-07T18:59:26.785Z DV [FTP Session 4 64.184.153.187 ext-tkmachine] session::on_socket_event(): source = data, flag = 2, error = 138, state = 6
2023-03-07T18:59:26.785Z !! [FTP Session 4 64.184.153.187 ext-tkmachine] Failed connection for data socket. Reason: ETIMEDOUT - Connection attempt timed out.
2023-03-07T18:59:26.785Z << [FTP Session 4 64.184.153.187 ext-tkmachine] 425 Unable to build data connection: ETIMEDOUT - Connection attempt timed out
2023-03-07T18:59:31.155Z >> [FTP Session 4 64.184.153.187 ext-tkmachine] CDUP

Connecting from inside the network it works fine. Connecting using https://ftptest.net/ it works fine. So, I know the Server is setup correctly.

Any suggestions?

Thanks
Bennie

[boco]

Set your FTP client to use Passive mode. Most clients behind firewalls are not configured for Active mode (PORT).