How to disable wireless when connected to LAN + Dell Latitude E6430

Settings wireless to turn off on physical LAN connection

 

Go to BIOS by press F12 during reboot.

Power Mgt ==> wireless radio control == > check the "Control WLAN RADIO & Control WWAN RADIO".

Reboot the laptop.

 Now it will

automatically disable wireless card/adapter  when connected to LAN

auto-switch wireless and lan on windows 7