Set RouterOS to use DHCP for Management IP

Login to the MikroTik device using WinBox, and click on Quick Set on the top left. 

This will bring up the option to set the device to use DHCP for its management IP address. 

In the Bridge section, choose Automatic for the Address Aqcquistion, and set the Address Source to Any. 

Then click Apply. You may get disconnected from the WinBox session.

If sucessful, you will see the IP Address information populated.