I can add the user via control panel and then I can connect. With no issues.
However if I add the user using copsshadm.exe, client cannot connect to the SSH server. I get the error "No supported authentication methods available (server sent: keyboard-interactive)" I see that copsshadm added a line in the passwd file for that user. So I then go into the control panel (copsshcp.exe) and then the passwd loses the line that copsshadm just created and no users show activated.
I need to be able to activate the user with a command line and it correctly allow clients to connect.
As of version 4 and higher, copsshadm is used for internal purposes in the installer. User activation is only possible via GUI. That may change in the future however.