Please check if your environment suits the kind the licenses that you have purchased.
- Node-Locked: applied to local desktops or workstations with fixed hardware specifications (machine-blocked license) such as Virtual machine with fixed machine ID and Physical machine
- DevOps: applied to the cloud or virtual machines with dynamic hardware specifications (to execute tests in Docker or Azure DevOps plugin)
- Floating: applied to all types of execution environments.
Please refer to this link for more details