An error occurred, but no specific error code exists to describe the failure

Bắt đầu tại Renci.SshNet.Sftp.SftpSession.RequestClose và lần theo đường dẫn upload qua SftpClient.InternalUploadFile và InternalSynchronizeDirectories. Tái hiện lỗi với máy chủ DataPowerSSH đã được báo cáo bằng các log được cung cấp và so sánh với một lần upload lftp thành công. Được xem là hoàn tất khi nguyên nhân đã được cô lập và upload либо hoạt động hoặc báo cáo một lỗi cụ thể, có thể xử lý.

Hi,

I'm getting the below error on various version ( including 2025.1.0 )

Unhandled exception occurred Renci.SshNet.Common.SshException: Failed to upload /2880389.xml to ./2880389.xml
---> Renci.SshNet.Common.SftpException: An error occurred, but no specific error code exists to describe the failure.
at Renci.SshNet.Sftp.SftpSession.RequestClose(Byte[] handle)
at Renci.SshNet.SftpClient.InternalUploadFile(Stream input, String path, Flags flags, SftpUploadAsyncResult asyncResult, Action`1 uploadCallback, Boolean isAsync, CancellationToken cancellationToken)
at Renci.SshNet.SftpClient.InternalSynchronizeDirectories(String sourcePath, String destinationPath, String searchPattern, SftpSynchronizeDirectoriesAsyncResult asyncResult)
--- End of inner exception stack trace ---

I'm properly connected to the SFTP server:

Files in remote directory ./username: ["processing"]
Current working directory: /

And I'm able to successfully upload a file using lftp:

lftp -u username sftp://some_server.com -e "put /tmp/test.xml -o /test5.xml; bye"

I don't have problems downloading files from this server.

Telnet to the server reoprts:

SSH-2.0-DataPowerSSH_1.1

I've been trying both:

SftpClient.Upload and SftpClient.SynchronizeDirectories(sourcePath, ".", "*.xml")

Any idea what might be causing the problem?
Tried to specify the remote path as / , ./ and ./username

Thanks

edi1
Maybe debug logs will be useful and also the fact, the server only supports: ssh-rsa

info: Renci.SshNet.Connection.DirectConnector[0]
Initiating connection to 'Unspecified/some_server.com:22'.
info: Renci.SshNet.Session[0]
Server version 'SSH-2.0-DataPowerSSH_1.1'.
dbug: Renci.SshNet.Session[0]
[(null)] Performing curve25519-sha256 key exchange.
dbug: Renci.SshNet.Security.KeyExchangeECCurve25519[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Creating aes128-ctr server cipher.
dbug: Renci.SshNet.Security.KeyExchangeECCurve25519[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Creating aes128-ctr client cipher.
dbug: Renci.SshNet.Security.KeyExchangeECCurve25519[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Creating hmac-sha2-256 server hmac algorithm.
dbug: Renci.SshNet.Security.KeyExchangeECCurve25519[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Creating hmac-sha2-256 client hmac algorithm.
dbug: Renci.SshNet.SftpClient[0]
Disposing client.
info: Renci.SshNet.SftpClient[0]
Disconnecting client.
dbug: Renci.SshNet.Session[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Disposing session.
info: Renci.SshNet.Session[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Disconnecting session.
dbug: Renci.SshNet.Session[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Shutting down socket.
dbug: Renci.SshNet.Session[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Disposing socket.
dbug: Renci.SshNet.Session[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Disposed socket.
info: Renci.SshNet.Session[0]
[5ACDE0EBBF5E5D1ACBF0B8452F18745B0D6126EFB878BD01C445FCD9FD937224] Raised exception
Renci.SshNet.Common.SshConnectionException: Software caused connection abort
---> System.Net.Sockets.SocketException (53): Software caused connection abort
at Renci.SshNet.Abstractions.SocketAbstraction.Read(Socket socket, Byte[] buffer, Int32 offset, Int32 size, TimeSpan readTimeout)
at Renci.SshNet.Session.TrySocketRead(Socket socket, Byte[] buffer, Int32 offset, Int32 length)
at Renci.SshNet.Session.ReceiveMessage(Socket socket)
at Renci.SshNet.Session.MessageListener()
--- End of inner exception stack trace ---