Creating guest network on hAp ax² (Wifiwave2)?

VLANs and management port… @pcunite guide describe the concept: http://forum.mikrotik.com/t/using-routeros-to-vlan-your-network/126489/1


or safe mode can be life savers.

Safe mode: https://help.mikrotik.com/docs/display/ROS/Console#Console-SafeMode