Batch- if command and "check internet connection"

I have problems with my router when downloading through steam and other programs, such as the internet losing connection with the router. I cant plug my pc to my router using cable so i made a solution: and the other one \Every X secounds disconect and connect to internet

But the problem is i want to make it more efficient so i would like a command that does this:

:a \Check connection \if connected then goto a \if noconnection disconect and connect to internet

i get problems with check connection command as its does not move on to the if

Please help and thanks for your time