If you have installed the Router OS onto a PC (i.e. it is not a RouterBoard), you will initially have no key, but for 24 hours the router will be fully operable and working. During this period configure the router to have an IP address, for example10.1.0.133, then purchase a key on the www.mikrotik.com account server. To enter this key follow this short guide:First method
Manual:Entering a RouterOS License key
www.basic-mikrotik.blogspot.com on 00.33. RouterOS Licensing -
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