I've set Filezilla to use Passive transfer mode
Status: Connecting to XXX.XXX.XXX.XXX:21... Status: Connection established, waiting for welcome message... Status: Initializing TLS... Status: Verifying certificate... Status: TLS connection established. Status: Logged in Status: Retrieving directory listing of "/My_Remote_Directory"... Command: CWD /My_Remote_Directory Response: 250 CWD command successful. Command: TYPE I Response: 200 Type set to I. Command: PASV Response: 227 Entering Passive Mode (XXX,XXX,XXX,XXX,XXX,242) Command: MLSD Error: Connection timed out after 20 seconds of inactivity Error: Failed to retrieve directory listing
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