Lito Yap
Ansys Employee

@Subhash Arya,

1. Try to reset/delete the Lumerical preference/configuration.ini files including the "License.ini" from your computer. 

Ansys Lumerical product preference files – Ansys Optics 

2. Then configure Lumerical to obtain the license from the Ansys LM on Server: localhost, Default Port. 

How to obtain a floating license – Ansys Optics 

3. Ensure that the Domain in the Lumerical Licenses configuration is "Standard"