I have a computer that needs to get a license from a server over VPN. Can you please let me know what needs to be done on that computer and server for that to be possible?

You need to modify your Nethasp.ini file to include the IP address and host name of your license server. Open the Nethasp.ini file in a text editor and there are directions on what to do. The file should be in your ACAD\support directory

Thanks
so the host name has to be there as well as the ip address?
also can you have 2 ip addresses in there?

I think you can use either the IP or the host, but not both, we use the IP. Not sure if you can use more then one IP.