ネットワークライセンスサーバーのライセンスファイルはどこにありますか？

The license file is normally stored in the Bricsys Network License Server installation folder, on Windows this usually is: C:\Program Files\Bricsys\Bricsys Network License Server.

The license file is named BricCAD.lic by default.

If multiple license keys are activated on the server, these are stored in different license files by default. They are called BricsCAD.lic, BricsCAD(2).lic etc.