I’ve just tried to connect to Azure FTPS site using
FileZilla server tests were passed successfully but Azure FTPS connection fails.
Error looks like
System.IO.IOException: Authentication failed because the remote party has closed the transport stream. at System.Net.Security.SslState.StartReadFrame(Byte buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
Finally I’ve resolved this issue by using the
SslProtocols.Tls12 option like below