TransportProtocolException Remote Computer does not appear to support the SSH protocol

Question

Getting the following error when attempting to make an SFTP connect to a remote server:

com.enterprisedt.net.j2ssh.transport.TransportProtocolException
The remote computer does not appear to support the SSH protocol

This connection and credentials do work using Filezilla. 

We are using version 5.2.4 of the edtftp pro library

Comments

Please set the logging level to Debug, rerun your application and copy the logging messages into your reply, taking care to remove any sensitive information (esp. hostname and user-name).

https://enterprisedt.com/products/edtftpjssl/doc/manual/html/howtosetuplogging.html