netsh interface set interface name="Local Area Connection" admin=disabled/enabled

@echo off

rem get the name of the adapter to turn off
wmic nic get name

rem turn off adapter
wmic path win32_networkadapter where name="SOME ADAPTER THAT NEEDS TURNED OFF" call diable 2>nul

rem turn on adapter
wmic path win32_networkadapter where name="SOME ADAPTER THAT NEEDS TURNED OFF" call enable 2>nul

exit