Troubleshooting
Problem
By default, Information Server 11.3 uses the SSL v3.0 protocol for secure communications, but this can be re-configured on the Services Tier to use newer TLS (Transport Layer Security) protocols.
There is wider support for TLS 1.0 in the underlying client operating systems, and some requirements equally apply to this version of the protocol.
The default network protocol in Information Server 11.7.1.6 is TLS 1.2, however release 11.7.1.6 also supports usage of TLS 1.3.
This article describes the additional requirements and configurations necessary to enable TLS 1.1, TLS 1.2 or TLS 1.3 protocol with the DataStage Clients (Designer/Director/Administrator).
Symptom
With certificates configured to use TLS protocols on the server (WebSphere), DataStage Designer (or Director or Administrator) fails to connect with either of the following errors:
Failed to authenticate the current user against the selected Services Tier
Unable to send HTTP request to Server [servername] on port [9443]. The WinInet ErrorCode is: [0]
Failed to authenticate the current user against the selected Services Tier
Could not connect to server [servername] on port [9443] is not reachable. Ensure that the server [servername] can be resolved and that communication port [9443] between this machine and the server is not blocked.
or
Clients are connecting, but the error message "The client session to the Services Tier is lost. Attempting to re-establish session" is repeatedly thrown, but its not possible to do any work because error happens continuously after acknowledging the message box.
Failed to authenticate the current user against the selected Services Tier
Unable to send HTTP request to Server [servername] on port [9443]. The WinInet ErrorCode is: [0]
or
Failed to authenticate the current user against the selected Services Tier
Could not connect to server [servername] on port [9443] is not reachable. Ensure that the server [servername] can be resolved and that communication port [9443] between this machine and the server is not blocked.
or
Clients are connecting, but the error message "The client session to the Services Tier is lost. Attempting to re-establish session" is repeatedly thrown, but its not possible to do any work because error happens continuously after acknowledging the message box.
[{"Product":{"code":"SSVSEF","label":"IBM InfoSphere DataStage"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"--","Platform":[{"code":"PF033","label":"Windows"}],"Version":"9.1.2.0;9.1.0.1;9.1;11.5;11.3.1.2;11.3.1.1;11.3.1.0;11.3;11.5.0.1","Edition":"All Editions","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
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Document Information
Modified date:
25 April 2025
UID
swg21699845