SFTP set up but connection can only be good like several hours, before PowerFTP can not connect with server and the error message is "Session.connect: java.net.SocketTimeoutException: Read timed out.
I restarted the NAS server, then the SFTP could connect work for a little while, sometimes as short as a couple of hours, before the same thing happened: can not connect with server and the error message is "Session.connect: java.net.SocketTimeoutException: Read timed out.
Any idea what the problem can be?