Hello Brian,
We usually use the latest LSTC license manager to generate the LSTC_SERVER_INFO file. Here is the latest procedure:
https://ftp.lstc.com/user/license/License-Manager/LS-DYNA%20Win%20License%20Server%20installation%20and%20update%20Aug%2026_2.pdf
username: user
password: computer
Let me know how it goes.
Reno.