My new routerboard dosent respond on 192.168.88.1

The routerboard is RB20Ui AS-RM and i get no Connection with it after i made a reset.
It is brand new.
What can i do?

There was an additional internal reset (two points to short) inside the cabinet. After that i could connect to the routerboard again.

Hello, don’t use ether1 to connect with PC

Use winbox and disable the firewall on your PC