When connecting to your Managed.com hosted FTP accounts using the FileZilla FTP client, you receive a prompt regarding an Unknown SSL Certificate, as below:
AND/OR you will see the following in your connection window:
Status: Connecting to (IP Address)...
Status: Connection established, waiting for welcome message...
Status: Initializing TLS...
Status: Verifying certificate...
Status: TLS connection established.
Status: Retrieving directory listing...
Response: 257 "/" is current directory.
Command: TYPE I
Response: 200 Type set to I.
Response: 227 Entering Passive Mode (IP, etc).
Response: 534 Protection level negotiation failed.
Error: Failed to retrieve directory listing
Error: Connection closed by server
This is due to an update in the Filezilla client (18.104.22.168) that defaults connections to "Use explicit FTP over TLS if available". This only happens if you have your FTP connections saved in the Site Manager (File > Site Manager).
- Click on File > Site Manager.
- In the Encryption field choose Use Plain FTP.
- Click Connect to connect to your Managed.com hosted FTP account.