Thanks @ivicask for your response and advice, but unfortunately that didn't work.Did you put your computer lan into same range as mikrotik?
So put manual IP address on your PC like 192.168.88.5, you will be able to access router than.
Finally I had entered my router with netInstall.Reset works always. The device should behave like new out of the box. Are you sure the reset was really done? If no go, the netinstall is the last option before the rma.