can't connect to router

i have routerboard 433ah with a xr2 added to it ,
i wanted to connected to it so i run the win box pluge the power and rj45 to poe conector and push the connect bottem but it can not connect to my router i uninstaled my nod disabled all other network card excep the one is connected to router but still nothing
please help me very fast

I don’t know to answer but a better topic title than “hi” may lead to faster answers.

contact ur supplier. he’d help u better