martin wrote:

You can use a batch file like this:
https://winscp.net/eng/docs/script_retry

Oh thanks a lot, Tweaked a bit and it runs forever (and added scheduled restart from Task Scheduler in case someone takes down the cmd process). Problem solved I think.

You can use a batch file like this:
https://winscp.net/eng/docs/script_retry

Windows 10
WinSCP.exe /script=<see below>

Script:
open ftp://user:password@mysite.tld
keepuptodate <localfolder>

All is good until e.g. ftp server is stopped, ports are closed by firewall or other network problems, then the WinSCP process is stopped after reporting: "Script: Lost connection" etc.
How to script so connection is retried instead of process exiting?