I think it source is the unreachable network drives?
Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.
There is a problem in connection 4.x.x (and with 4.3.3).
- Winscp enter username and password.
- Hide the connection (console?) window.
- The application will be completty hidden, and if you waiting e.g. for 5 minutes, the application will be show with file panels.
It is only, if you started winscp. If winscp is running, the next connection is working fast. I think it source is the unreachable network drives?