in reply to
Re^10: Net::OpenSSH help needed
in thread Net::OpenSSH help needed
That server implementation of the SSH protocol is completely broken.
During the authentication stage it accepts any password as valid but then once the connection is established, when a new channel is open and a command send it replies with a "invalid password" error and then asks for a new one.
You will have to experiment yourself in order to find a workaround for that.
Maybe you could run a dummy command with Expect in order to detect the bad-password state once the session is established. See how to integrate Net::OpenSSH and Expect here.