Anonymous access with the Cognos TM1 server and Cognos security
To successfully set configuration settings and procedures to enable IBM® Cognos® security authentication on the IBM Cognos TM1® server, your Cognos server must not be configured to allow anonymous access.
If anonymous access is enabled on the Cognos server, you cannot logon to a namespace from Cognos TM1 when importing Cognos groups into Cognos TM1.