how do i renew an expired license

One of the several computers I manage has a licensing problem. There are four associated license files to this specific MAC address. 3 out of 4 license files are good at the moment, however the ModelSim license maintenance and expiration date have passed.

These license files apply to a instructor's laptop in my department at a College. How do I renew the expired license for this computer?

We do not have a support contract through Intel, but our licensing goes back 20+ years to when we became part of the University program through the Altera Company. When Intel FPGA absorbed Altera, our licensing went with it.

In the past year or so, I had applied to Intel FPGA for a renewal concurrent network license to handle lab computers. However, our instructors still wish to work offsite and have a license tied directly to their computer, even more since the COVID pandemic began 2 years ago.

The 'license assistant web applet did not really answer my questions, and Intel Support directed me to this forum. I very much hope someone reads this and can steer me to a timely solution.

Thank you for your time,

Sean