Flexlm Error: cannot connect to license server (15)
Program not run.
ArcInfo will not start until it is able to connect to and checkout a license from a license manager server. There are several possible scenarios that would cause this problem:
The license manager is not running.
The license manager was started improperly.
The license manager server and client workstations may not have the same date or time.
The FLEXlm hostid in the license file, license.dat, may not match the FLEXlm hostid of the license manager server.
The environment variables are not set up properly.
The system permissions on the license file, license.dat may be incorrect.
You are using a pre-ArcInfo 8 license.boot file and lmgrd does not recognize the ESRI vendor daemon.
You are using a pre-ArcInfo 8 license file.
TCP/IP may not be enabled.
Check the date/time difference between machines.
Verify the hostid of the license server matches the hostid in the license file.
Verify the hostname of the license server matches the hostname in the license file.