I have noticed that when using Autodesk Network License Manager 11.12, you may need to customize OUR license files to use the non default licensng ports.
For example, when configuring Autodesk licensing service with Foundry, ArcGIS or CamWorks, you will need to edit our license files to use a differnet port for lmgrd.exe. i.e. 27000 (default) to 27001
For ArcGIS, you also need to use the 32 bit version of the Autodesk Network License Manager.
Finally, if you are using Autodesk and Abaqus software in your company, you will need to even customize the adskflex.exe port (2080) in our license file because of the following conflict: