Hello Jackie,
Have you done a license server change for the LSTC license? The LSTC license manager is installed on only 1 machine; the license server. Then, the client machines (where the LS-DYNA solver runs) have to point to the LSTC license server using the following 2 environment variables:
LSTC_LICESE=network
LSTC_LICENSE_SERVER=hostname_or_ip_address_of_license_server
You can set the environment variables using the program manager.
Let me know how it goes.
Reno.