We've just started using WinSCP... it's a great product..
I've got it setup (with script) on our main Data Server (connected directly to our router) and it manages to access and logon to the Client's FTP server. No problems.
I have the same configuration on several other workstations (all on internal LAN) and none of them can login. The message log says "Server refused our key". We have setup the Keys at both ends for each workstation. No passwords are used.
Any ideas why we can't login from the workstations?