IBM Support

Connecting Rational license server results in FLEXlm Error -15 Cannot connect to license server

Troubleshooting


Problem

Attempts to connect to an IBM Rational License server, which is up and running with valid license files installed results in the error "FLEXlm error -15 cannot connect to license server".

Symptom

After a Rational product is installed, attempting to connect to license server using the License Key Administrator results in the FLEXlm -15 error.

Note: The client machine is not behind a firewall.

Cause

Not specifying the default lmgrd port number of 27000 may result in the failure of the client to connect to license server, even if the client machine is not behind a firewall.

Resolving The Problem

Specify the default lmgrd port number of 27000 as follows:

  1. Open the License Key Administrator

  2. Click Settings > Server Ports...

  3. Type 27000 in the Port for "lmgrd" field

  4. Click OK

[{"Product":{"code":"SSTMW6","label":"Rational License Key Server"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"General Information","Platform":[{"code":"PF033","label":"Windows"}],"Version":"Version Independent","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
16 June 2018

UID

swg21156531