Locate the nethasp.ini file (usually in C:\Program Files\mcam2021 ).

Encountering a "License Not Found" or "No Valid License Found" error when launching Mastercam 2021 is a common issue. It usually indicates that the software cannot communicate with the security device (Hasp/Sim) or the license server.

Drag and drop the new license file into the CodeMeter window. To help find the exact fix, tell me: Are you using a or a network license ? Does an error code show up with the message? Did this happen after a Windows update ?

Are you using a or a software/network license ?

Ensure the server computer holding the USB key is turned on and logged in. The "Sentinel LDK License Manager" service must be running on that server.

The USB port is dead, or the HASP driver is corrupt.

Are you using a or a digital software license ?

Download the latest Sentinel HASP/LDK Windows GUI Runtime Setup (manufacturer Aladdin/SafeNet). Run the driver setup to install/update the drivers. Reboot your computer. Plug the HASP back in. 3. Resolving NetHASP License Issues (Network)

Mastercam 2021 License Not Found: Troubleshooting and Solutions

: The USB key should have a glowing light.

Sometimes the HASP_MAX_COUNT registry key gets stuck at zero.

Is this happening on a or a network setup ?

If you are using a network license (shared among workstations), the error often means the client cannot find the server. Check NetHASP.ini Configuration Navigate to C:\Program Files\mcam2021\common\ . Open the nethasp.ini file using Notepad. Ensure the configuration matches your server settings.

Go to . Select Online Activation/Deactivation .

If you use a physical USB dongle, ensure it is plugged into a USB 2.0 port rather than a USB 3.0 port, as older drivers may not recognize 3.0. Check for a red light on the dongle.