Unfortunately we cannot reproduce the same issue (it happened on the production server).
We found out that the remote directory we were trying to change to, was removed from the ftp site.
Now it's back and the program functions with no issues.
But what we got from edtFTPnet was just an SFTPException with code=2. It would have been nice if we can get a preview of what's the meaning of the error codes.
If setting the logging level to ALL gives us that information, that would be ok, so we will know in a future event. Even then we have to recreate the issue in order to capture the real exception.
If not we would like to be able to diagnose the failure code somehow.
Thank you.