Ensure your firewall allows communication with license.codesys.com .
Are you activating a (CODESYS IDE) or a Device/PLC (runtime)? codesys license activation
CODESYS License Activation: The Comprehensive Guide (2026 Edition) Ensure your firewall allows communication with license
If a USB dongle is not detected, ensure the WIBU-KEY drivers are installed. codesys license activation
This is a very common task for automation engineers.
The wizard will prompt you to save a (ending in .WibuCmRaC ). Save this file to a USB flash drive. Step 2: Upload the Request to the CODESYS License Central
Copy this file to a device that does have internet access (a USB stick is useful here).