Why connection to SMB share cannot be established?

This article applies to all MetaDefender Storage Security versions.

Issue:

MetaDefender Storage Security connection with SMB fails with error:

smbprotocol.exceptions.SMBOSError: [Error 0] [NtStatus 0xc00000c9] Unknown NtStatus error returned 'STATUS_NETWORK_NAME_DELETED': '\\{IP_HOSTNAME}ftp\CN

Description

  • NtStatus 0xc00000c9 corresponds to STATUS_NETWORK_NAME_DELETED.
  • This error typically occurs when the network share or resource you are trying to access has been removed, deleted, or is temporarily unavailable.
  • It can also happen if the SMB session has become stale (e.g., the server closed the connection due to timeout, network issues, or a manual server-side operation).

Possible Causes:

  • The network share \\[IP_HOSTNAME]\ftp\CN was deleted or unshared on the server. The SMB server might be up but the whole path might be unshared.
  • The server at [IP_HOSTNAME] rebooted, crashed, or restarted its SMB service.
  • There is a network connectivity issue between our SMB service and customer’s SMB server.
  • Permissions on the share changed, making it inaccessible.

If Further Assistance is required, please proceed to log a support case or chatting with our support engineer.
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Why connection to SMB share cannot be established?Issue:DescriptionPossible Causes: