IBM Support

Controller client disappears after choosing database, caused by "Restrict access to members of the built-in namespace" set to "False" (when security is set to 'CAM Authentication' - not "native")



User launches Controller client (ccr.exe). User is prompted with database selection, and chooses relevant database.
Afterwards, however, instead of being prompted to logon (or to choose the period) the users client session disappears.
  • There is no error message.


Controller client crashes/ends/disappears during logon process. There is no message recorded either:
  • on screen
  • or inside the Event Viewer.


There are many different potential causes for similar behaviour/symptoms.
  • TIP: For more examples, see separate IBM Technote #374171.

This Technote specifically relates to the scenario where the cause is that "Cognos Configuration" is configured incorrectly.
  • Specifically, the customer had configured "Restrict access to members of the built-in namespace" to be set to "False":
image 2507


Controller configured to use (Cognos) CAM Authentication:
image 2503

Resolving The Problem

Inside "Cognos Configuration", change  "Restrict access to members of the built-in namespace" to be set to "True":
image 2508
  • TIP: For more information see separate IBM Technote #1380097.


  1. Logon to Report Server (Cognos Analytics server) as an administrator
  2. From the Start Menu, launch "Cognos Configuration"
  3. Expand section "Local Configuration - Security - Authentication"
  4. Ensure that the setting "Restrict access to members of the built-in namespace" is set to "True"
  5. After making changes, restart the Cognos service (for example restart the 'IBM Cognos' Windows service).

Document Location


[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS9S6B","label":"IBM Cognos Controller"},"Component":"","Platform":[{"code":"PF033","label":"Windows"}],"Version":"10.4.2","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
10 March 2020