When you obtain license key for your gateway go to the menu Firmware/License . There you can see also status of actual license but when you want to upload a new, please fill the license key into "license key for the gateway" field.
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When you obtain license key for your gateway go to the menu Firmware/License . There you can see also status of actual license but when you want to upload a new, please fill the license key into "license key for the gateway" field.