Ensure that the license file/manager is configured with static ports and these are allowed acces on the machine (DELL-XPS15).
>>> Ansys license manager configuration and license file installation – Ansys Optics
>>> Adding inbound rules to Windows Defender firewall – Ansys Optics
If you want to use the Ansys client settings, select this option in the Ansys Optic Launcher > Licenses configuration.
Otherwise, Disable the Ansys client licensing settings and configure using the default setting, Apply these settings my user account only.
If the Ansys License Manager is on the same computer that is running Ansys Optics (Lumerical), set Server to localhost