Configure Hotspot on MAC

1. System Preference >> Internet Sharing (if u r not familiar with MAC, just search "system preference", then search "internet sharing")
2. Turn off "Internet Sharing" so that you can edit it,  and then share wifi as virtual router
    Share you your connect from >> Ethernet
    To Computers using >> Wi-fi
    Wi-fi Options >> Network Name: must be exact same as your computer name
            Security >> WPA2 Personal
            Password >> 8 characters in length
3.Turn on "Internet Sharing" >> Start, then u r ready to use Hotspot on smartphone or tablet.