1554886 - Implicit FTPS is not supported by the XI/PI FTP Adapter | SAP Knowledge Base Article

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1554886 - Implicit FTPS is not supported by the XI/PI FTP Adapter


In SAP Process Integration (PI) or Process Orchestration (PO), you are trying to configure a FTPS connection using the File adapter to connect to an FTP server. You are experiencing errors, such as:

  • Exception caught by adapter framework: Error when getting an FTP connection from connection pool: com.sap.aii.af.lib.util.concurrent.ResourcePoolException: Unable to create new pooled resource: SocketException: Connection reset
  • FTPEx: 520 Control connection prematurely closed by server
  • ControlChannelClosed - - 258



  • PI Release Independent
  • SAP NetWeaver
  • SAP Process Integration


SAP NetWeaver all versions ; SAP Process Integration all versions


implicit FTPS, 990, FTPEx: 520, Process Integration 7.0, PI 7.0, PI 7.01, PI 7.02, Process Integration 7.10, PI 7.10, Process Integration 7.11, PI 7.11, Process Integration 7.30, PI 7.30, Process Integration 7.31, PI 7.31, Process Orchestration 7.4, PI 7.4, PO 7.4, Process Orchestration 7.5, PI 7.5, PO 7.5, XI, AEX , KBA , BC-XI-CON-FIL , File Adapter , Problem

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