Connection Open while processing a file for 45minutes then the session is not open

Hello, I connect via SFTP Renci and begin processing a file. It takes 45minutes to 1 hour and then finishes. I then try to move the file using sftpclient.Moveto but i get the error that "the session is not open". This was not an issue for smaller files that processed within a few minutes.

It seems to be timing out the connection when opened for too long. How can I extend it?
I've tried the below but it's still not working

                    client.KeepAliveInterval = TimeSpan.FromSeconds(30);
                    client.ConnectionInfo.Timeout = TimeSpan.FromMinutes(150);
                    client.OperationTimeout = TimeSpan.FromMinutes(150);
                    client.Connect();

Comienza con el ciclo de vida de la conexión SFTP en torno a SftpClient.MoveTo y la configuración de KeepAliveInterval, ConnectionInfo.Timeout y OperationTimeout mostrada en el informe. Reproduce el caso de procesamiento de archivos de 45–60 minutos y determina si la sesión permanece abierta después; se considera completado cuando se haya identificado una solución confirmada o documentado la configuración que falta o la limitación.