we have a very strange problem.
We are using the same version of WinSCP (the last one, 5.17.8 build 10803) on two different windows machin.
The two PC are on different location.
They try to download via FTP the same files on the same ftp server with the same winscp script.
The connection is FTP with Explicit SSL server.
in one this is working perfectly,
in the second one, we have the following problem.
We are getting crazy. we made a lot of changes to try to find the solution, but nothing....
winscp> open ftps://user:email@example.com/ -certificate="zzzzzzzzzzzzzzzzzzzzzzz" -rawsettings MaxTlsVersion=13 -passive=on -explicit Connecting to ftp.zzz.com ... TLS connection established. Waiting for welcome message... Connected Starting the session... Session started. Active session:  firstname.lastname@example.org winscp> cd EDI_zzzzz /EDI_zzzzz winscp> dir Lost connection. Timeout detected. (data connection) Could not retrieve directory listing (A)bort, (R)econnect (0 s): Reconnect Connecting to ftp.zzz.com ... TLS connection established. Waiting for welcome message... Connected Starting the session...