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RouterOS is the operating system of all RouterBOARD routers. Please see documentation: https://mt.lv/help
This device is not preconfigured other than an IP address on the ethernet port. Another configuration has to be applied according to the documentation manual linked above.
The initial connection has to be done via the ethernet cable, using the MikroTik Winbox utility. Winbox should be used to connect to the default IP address of 192.168.88.1 with the username admin and no password (or, for some models, check user and wireless passwords on the sticker).
In case you wish to boot the device from the network, for example, to use MikroTik Netinstall, hold the reset button of the device when starting it until the LED light turns off, and the device will start to look for Netinstall servers.
In case the IP connection is not available, the Winbox utility can also be used to connect to the MAC address of the device. More information in the documentation.
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