Your duplicate question on Stack Overflow:
https://stackoverflow.com/q/65193603/850848

I want to know how to resume a big file download instantly using get command using winscp command line. I want to download a 30gb file out of which 22 gb is already completed. Now when I am resuming transfer it’s not starting instantly and after some time server is sending disconnect because of which not able to resume file transfer in get command. Please let me know if any setting is there in which I can instantly resume file transfer from last position of the downloaded file.