FLEXlm Error: -15 Cannot connect to license server

Error Message

The following error message displays when starting an ArcGIS Desktop application:

"FLEXlm Error: Cannot connect to license server. The server (lmgrd) has not been started yet, or the wrong port@host or license file is being used, or the port or hostname in the license file has been changed.
Feature: ARC/INFO
Server name: server1
License path:[Below are examples only]
@server1;c:\arcgis\arcexe82\sysgen\license.dat
@server1;c:\Prog~1\ESRI\License\arcgis9x
@server1;c:\Prog(x86)\ESRI\License\arcgis9x

FLEXlm error: -15,10. System Error: 10061 "WinSock: Connection refused"
For further information, refer to the FLEXlm End User Manual,
available at "www.globetrotter.com".
Program not run."

Cause

ArcGIS cannot connect to and check out a license from a license server.

Solution or Workaround

1. Verify that the License Path indicated in the error message is the correct host name or IP address of the license manager system. If the License Path is 'Not_Set', then Desktop Administrator has not been configured with the location of the License Manager.
2. If the 'License Path' is correct, then the license manager may not be running. If the license manager system cannot be accessed, contact a license administrator for assistance. Otherwise, perform the following troubleshooting steps on the license manager system.
3. Restart the License Manager:
   1. Click Start > Programs > ArcInfo > License Manager > License Manager Tools.
   2. Check the Configuration using Services radio button.
   3. Select the Start/Stop/Reread tab.
   4. Click Stop Server.
   5. Click Start Server.
4. Perform a Status Enquiry to confirm that the licenses are available:
   1. Click the Server Status tab and click the Perform status enquiry button. Display Everything should be selected.
   2. Verify that there are no errors in the status enquiry. See: Checking the license server status
   3. Check the license manager log file for any errors.
   4. On the Config Services tab, click View Log. See: Problem: Messages in the license manager log file.
   5. If the status enquiry and log files do not indicate any errors, there may be a firewall running on the license manager system.
   6. If issues persist, contact Esri Support for further assistance.