IBM Support

Cognos Express remote Xcelerator client cannot connect to server

Technote (troubleshooting)


User has installed the Xcelerator client on a remote machine but it does not show the CXMD server instance in Server Explorer


The required ports are being blocked either at the Cognos Express server or the local client.

Diagnosing the problem

Temporarily turn off the firewall at both the Cognos Express server and the local client. If the Xcelerator client can now connect, that confirms it is a port blockage issue.

Resolving the problem

If the organization requires the use of firewalls then turn them back on and assure the following ports have been opened via firewall rules:



19300 - 19310 (the default range which can be changed during install).

Verify that the following ports are within the above range:

PortNumber specified in tm1s.cfg for CXMD instance

ClientMessagePortNumber specified in tm1s.cfg for CXMD instance.

Document information

More support for: Cognos Express Xcelerator

Software version: All Versions

Operating system(s): Windows, Windows 2003 server, Windows 2008 server, Windows 7, Windows XP

Reference #: 1632042

Modified date: 09 May 2013

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