I'm trying to do my GIS homework for class and I am unable to complete it because I can not turn on the 3D analyst because it says that I have no licensing. What can I do to fix this problem. I am on a school computer.
Why would they give you an assignment that needs 3D Analyst if they don't have a license? Are you sure that you don't need Spatial Analyst instead? Check for that extension.
Also, try the License Server Administrator, and check the Availability tab