To use LMTools, you must define which License Manager server you want to manage.
Each time you open LMTools you will need to specify your license configuration.
Open LMTools and click on the Service/License File tab:
If your license file is on a remote server, pick Configuration Using License File. Then browse for a license file or enter a <port>@<host> value.
Otherwise choose Configuration using Services. Each FLEXlm service on the local computer will be listed.
Select the service to administer (ESRI License Manager)