After installation RouterOS runs in trial mode. You have 24 hours to register for Level1 or purchase Level 3,4,5 or 6 and enter a valid key.
Level 3 is a wireless station (client or CPE) only license. For x86 PCs, Level3 is not available for purchase individually. For ordering more than 100 L3 licenses, contact sales[at]mikrotik.com
Level 2 was a transitional license from old legacy (pre 2.8) license format. These licenses are not available anymore, if you have this kind of license, it wil