IBM Support

Login prompt does not appear when connecting TM1 Achitect



TM1 Architect displays the TM1 Server(s) from a client system. After clicking on the server name to connect nothing happens. This behaviour may occur with both security mode type 1 and 5.


The login screen does not appear in TM1 Architect or Perspectives when connecting to a remote TM1 Server. Connecting from the system where the TM1 Server and TM1 Admin Server is running does not experience the same problem.


Port range 49152-65535 may be blocked. Architect typically uses port 5495 or 5498 to connect but is then passed off to a random port in this range. If ports in this range are blocked Architect will not display the login prompt.

Resolving The Problem

Verify ports in the range 49152-65535 are not blocked by firewalls on the client, server or by a network based firewall.

[{"Product":{"code":"SS9RXT","label":"Cognos TM1"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"TM1","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF010","label":"HP-UX"}],"Version":"9.5.2;9.5.1;9.5;10.1.0;10.1.1","Edition":"All Editions","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
15 June 2018