One of the following error messages appears, when connecting to a server via FTP in active mode:
Connection timed out
Connection attempt failed with "ETIMEDOUT - Connection attempt timed out".
TCP ports 21 and/or 20 is/are filtered.
Enable Plesk Firewall to open these ports locally on the server.
If after opening the FTP ports in a server firewall these ports are still blocked, make sure that:
- A third-party firewall, in case it is used, is not blocking the connection to the FTP ports.
An intermediary firewall between a Plesk server and the Internet is not filtering the FTP ports. Contact your Internet Service Provider (ISP) for assistance.