Hi
Firstly, I hope that I'm not writing in this thread too late. If yes maybe someone who is trying to solve this error will find it helpful.
I had the same problem like you though in ansys 14 to solve it I tried plenty of things (changing ports, modifying license in different directories). In my case this error was caused by fact that i have installed
ansys 14 and
ansys license manager in two different partitions so uploaded license in license manager could not be used by ansys itself.
To solve this problem you must simply:
1. Upload your license in license manager (Install the License file)
2. Go to your license manager directory and copy all the
loose files (I mean: license.dat, license.log, license.dat.log...) in Licensing dir (ANSYS Inc\Shared Files\Licensing)
3. Next go to your ansys 12 dir and paste those files in (ANSYS Inc\Shared Files\Licensing)
And now everytnig should work smooth and fine
PS: Presumably, you can copy only license.dat but I've copied all of those loose files ;-).