

Although some are more secure than others, they can often cause problems even with legitimate connections by preventing the connection from being established.

Encryption:There are several types of connection ciphers that you can use when trying to connect to the server.Therefore, these ports are blocked by the Firewall and this error is triggered. Although the exception for a particular port could be added in the Firewall, it still uses a " passive mode” to send and receive files. This error is triggered because Windows Firewall was blocking the FileZilla connection. Every time a connection attempt was made locally, this error was triggered.

