Do you see error like this post
I have described the issue and resolution in there.
Let's fix this first and see if you still have issue with "No SERVER lines in license file". For ANSYS Student products/licenses, there is no SERVER lines in license file (C:Program FilesANSYS IncANSYS StudentShared FilesLicensingstudent.lic) it should only list INCREMENT lines.
Those that require SERVER lines on the license file are paid academic/commercial licenses/products.