There are times we find ourselves in this same situation. We have a terminal and we want it to always connect to the same RDP session with the same credentials every time.
In this case we created a new folder on the FTP server with a modified wnos.ini. We add the following to this file:
DefaultUser=$tn
Password=
The “$tn” is a WTOS variable for the terminal name of the device. We then create user.ini files that are formatted as terminalname.ini. The contents of your user.ini file can remain the same as you listed here.
Hope this helps.