If Gerber sent you a new license file (usually a .v2c extension), you must apply it through the Sentinel Admin Control Center or the Gerber License Update utility. 5. Antivirus and Firewall Interference
Ensure the LED indicator light on the dongle is on. A flashing or dead light points to a hardware failure or driver issue. a valid accumark license was not found for this product
AccuMark relies on a background Windows service called to verify your software credentials. If this service crashes or fails to start with Windows, the license error will appear. If Gerber sent you a new license file (usually a