license error 9

Hi! While running an optimization for my model i get this error 

despite that I rename the license file to altair_lic.dat and place the same in the <installation directory>/security folder

I also have same Ethernal IP adres in license as in my computer

Plis help me, what should i do? I can't request for the license file again cause I have already done it 5 times and still doesn't work.