Support2,
Thanks for your response.
Yes, I did. But, once reconnected, I got 550 error (file is being held by another process). This might be because it's a Windows server.
I tried to put FTP thread to sleep for certain time and then reconnect. Even a 10 minutes long wait is NOT enough. But if reconnecting after 15 minutes, the file is accessible again.
15 minute wait is too long, though transfer resuming does work after getting reconnected.
Is there anything we can do from client side?
Bob