That's rather a question for a network administrator. There can be numerous reasons for this. For a start, can you even ping the server from the clients' machines?
The Authenticated Users group was configured in all of the domain user home directories. the home directories hold the winscp.exe and config file.
'Authenticated users' was allowing all auth'd users to access all user directories, so it was something we had to resolve. So we did (we removed the ). The next day (today), we found 90 %users could execute winscp.exe fully, but it returns an error "Connection Failed" right away.
I've tried all sorts of things. Any suggestions.[/b]