The data connection could not be established: WSAEADDRNOTAVAIL - Cannot assign requested address

[cheung222]

Hi There,

After upgrading FileZilla client from 3.10.3 to 3.14.1, the following error message will be displayed every time I connect to our ftp server through a proxy server using a proxy client in windows 7 or 8.1.
In fact, everything was working fine in 3.10.x using the same proxy client and windows os. Seems there was big code change after version 3.11.x.
I know FileZilla client built-in proxy function, and it is working fine too. However, our proxy client is more flexible and controllable. Is it possible to re-implement this function in 3.14.x? Thanks.

Error Message
=============
The data connection could not be established: WSAEADDRNOTAVAIL - Cannot assign requested address

[Tim Kosse]

Please attach complete log of a connection attempt.

[cheung222]

Here is the log for both version. Thanks.

3.10.3
======
Status: Connecting to [ip_address_removed]:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Connected
Status: Retrieving directory listing...
Status: Directory listing of "/" successful

3.14.1
======
Status: Connecting to [ip_address_removed]:21...
Status: Connection established, waiting for welcome message...
Status: Insecure server, it does not support FTP over TLS.
Status: Server does not support non-ASCII characters.
Status: Connected
Status: Retrieving directory listing...
Command: PWD
Response: 257 "/"
Command: TYPE I
Response: 200 Switching to Binary mode.
Command: PASV
Response: 227 Entering Passive Mode ([ip_address_removed],24,229)
Command: LIST
Error: The data connection could not be established: WSAEADDRNOTAVAIL - Cannot assign requested address
Response: 150 Here comes the directory listing.
Response: 226 Directory send OK.
Error: Failed to retrieve directory listing