Licence error is occuring again and again

i had matlab 2010a and now i am trying to install matlab 2015a but licence error-8 is occuring again and again. i have checked the licence file and server file....both have same id XXXXXX and host id is "ANY" in both. Please resolve my problem.

[Matt J]

Mathworks tech support is the better place to go for installlation and license problems.