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| Home > Frequently Asked Questions about Licensing > Problems with client configuration > My node-locked tools fail with FLEXnet error -8: Invalid license key (inconsistent authentication code) | |||
This error can be reported if your license file has been corrupted, moved, or modified in a way that is not allowed. If this has happened, reinstall a clean version of your license file, for example, by using the ARM web licensing portal to retrieve your original license. See ARM web licensing portal.