We have a job to download a 440MB file every night and this job will frozen once every week causing all the other job afterwards not be executed.
This is giving a big impact on the application level.
We checked our network and is stable
Let me ask some of the Dev folks, but could it potentially be a timeout or usage timeout on the job?
Are you able to get information from the server-side logs on this? According to the log in FTP Voyager, it's trying to start the user authentication process and the server is closing the connection unexpectedly. The server-side log may have more context on why the connection is being closed.