Filezilla Server versus ClickOnce applications problem.
Suddenly I wasn't able to deploy .Net applications using ClickOnce.
I got a FileZilla Server as the publisher Folder Locations. One day it stopped working, complaining on Passive Mode didn't work.
I figure out the problem was at the server side.
On Filezilla the minimum allowed TLS version was set to v1.2 ???
I'm not sure if this was the default setting or if VS2017 had done some changes regarding minimum TLS level.
But after changing it to minimum v1.3, ClickOnce deployment start working :)
To find the Minimum TLS level settings in FileZilla:
- Open 'Administration Interface for FileZilla'
- Click Menu 'Server'
- Click 'Configure..'
- Select 'FTP and FTP over TLS (FTPS)' under 'Protocol Settings'
- On the 'Connection Security' tab, set 'Minimum allowed TLS version' to v1.3
- Click OK
- We are done, at least I was 😁
