| Problem | Solution | |---------|----------| | “Invalid key” | Check for typos, dashes. Ensure key is for (V3 key won’t work on V2.3). | | “No container found” | For dongle: reinstall driver ( CmStick driver from CODESYS). For runtime: check network/firewall. | | “License already in use” | Deactivate from previous device (License Manager → Deactivate). | | “Time-limited demo expired” | Buy full license or request extension from distributor. | | Dongle not detected | Install CODESYS Runtime Toolkit or CodeMeter Runtime Kit . |
Unlike perpetual software from the 1990s, modern CODESYS licenses (V3.5 SP14+) allow . codesys license activation