can't download upgrade winscp 5.17 from cdn.winscp.net as domain does not exist so DNS flush

I click on the upgrade link and it says wait for download then it says server not known.
I checked nslookup cdn.winscp.net and it does not exist.
I did DNS flush on Windows 7:
ipconfig/flushdns
Download worked this time.
I am using internet sharing on Windows Phone 8.1 for Windows 7.

Thanks for your report. We will look at that.