Like watchdog script

Please check may script to disable and enable interface after ping failed:

{
:if ([/ping XX.XX.XX.XX count=2]>0) do={
    /interface disable 2
    :delay 2s
    /interface enable 2
    }
}

this scrip not working in my router v3.30 on x86 and can i make this scrip to disable just one interface example /interface disable wlan1 :delay 2s /interface enable wlan1

Something like this.

{
:if ([/ping XX.XX.XX.XX count=2]>0) do={
    /interface disable [find name=wlan1]
    :delay 2s
    /interface enable [find name=wlan1]
    }
}