We have multiple calls to the sFTP for downloading the files.
Frequency duration for sFTP call is 10 seconds.
Due to high call frequencies we are getting below error:
"WinSCP.SessionRemoteException: Connection has been unexpectedly closed. Server sent command exit status 0. ---> WinSCP.SessionRemoteException: Authentication log (see session log for details): Using username "abc". Access denied. Authentication failed."
WinSCP 5.5.6(Build 4746).
Please suggest if you have any information.