SAP Knowledge Base Article - Preview

2549782 - Client host cannot connect however other client hosts can - SDK for SAP ASE


  • Cannot connect via isql or any applications to ASE's host and port number
  • Error message:
    CT-LIBRARY error:
    ct_connect(): network packet layer: internal net library error: Net-Lib protocol driver call to connect two endpoints failed
  • Reboot Host helps for a period of time, but then fails
  • Reboot ASE doesn't help



  • SAP Sybase Software Developer Kit (SDK) 15.7
  • SAP Adaptive Server Enterprise (ASE) Software Developer Kit (SDK) 16.0
  • SAP Adaptive Server Enterprise (ASE)


SAP Adaptive Server Enterprise 12.5 ; SAP Adaptive Server Enterprise 15.7 ; SAP Adaptive Server Enterprise 16.0 ; SAP Adaptive Server Enterprise SDK 16.0 ; Sybase SDK 12.5 ; Sybase SDK 15.0 ; Sybase SDK 15.5 ; Sybase SDK 15.7 ; Sybase Software Developer Kit 15.7


Cannot, can't, connect, conn, application, app, fail, two endpoint, point, end, fail, failed, wrong, incorrectly, some, reboot, , KBA , BC-SYB-SDK , SDK , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.