I have just set up a FTP server in IIS 8.5 on my Windows Server 2012 R2 machine.
With FileZilla when I try connect to the local IP (10.0.0.4) with my username and password on port 21, it will connect just fine, But when I try to connect on the external IP I get this error
Server sent passive reply with unroutable address. Using server address instead
Here is the full log
Status: Disconnected from server
Status: Connecting to 191.23x.xx.111:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Connected
Status: Retrieving directory listing...
Status: Server sent passive reply with unroutable address. Using server address instead.
Command: LIST
Response: 150 Opening BINARY mode data connection.
Error: Connection timed out after 20 seconds of inactivity
Error: Failed to retrieve directory listing
Status: Disconnected from server
Status: Connecting to 191.23x.xx.111:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Connected
Status: Retrieving directory listing...
Status: Server sent passive reply with unroutable address. Using server address instead.
Command: LIST
Response: 150 Opening BINARY mode data connection.
Error: Connection timed out after 20 seconds of inactivity
Error: Failed to retrieve directory listing
Where it hangs on
Server sent passive reply with unroutable address. Using server address instead.
for a bit of time before it fails