...
The device comes preinstalled with RouterOS and is ready to use. The SFP port 1 has a default IP address for connecting: 192.168.88.1. The username is admin and there is no password (or, for some models, check user and wireless passwords on the sticker). Please connect with your web browser to this IP address and choose Webfig to configure it. The device doesn't have any other configuration applied by default, please connect to it, and set up WAN IP addresses, user password, firewall, etc. Detailed info on how to upgrade the device https://mt.lv/upgrade;
See this page for connection and configuration guides: +https://mt.lv/help+
...