Thank for help,
I had to create network for eth and wifi, it works now.

Hi, i have got MikroTik RB751U-2hND and 3G modem Huawei K2540. In RouterOS, I have set modem - APN, PIN, Phone. In RouterOS is written : Connected. I set route - out : modem. I set wireless SSID, password.. But when I try go to Google, it doesn't work. In RouterOS Terminal pings Google without probl...