This happens when user has these two Environment variables set for Ansys Elastic licensing. ANSYSLI_ELASTIC=1 and ANSYSLI_LCP=1 LS-DYNA being built with the older license library, it does not “know” to use ANSYSLI_ELASTIC to connect to the ansyscl handler started in the background and, instead, requires ANYSLI_LCP which starts ansysli_client handler in the background. Without ANSYSLI_LCP LS-DYNA connects to the server 2325 port and does the license sharing as expected. set ANSYSLI_LCP to 0 and LSDYNA will use single license of Ansys LSDYNA to run Pre/Post and Solver in Workbench.