Hi peter_sgc,
Thanks for the post! The Latitude E5440 systems can be configured to enable/disable connection to through a wireless network if configured in the systems BIOS.
The setting can be found by entering your systems BIOS (Restarting the system and pressing <F12>When the Dell logo appears on screen)
Navigating to Power Management >> Wireless Radio Control
Here you can enable / disable the feature to sense the systems connection to a wired network and subsequently disable the selected wireless radios (WLAN and/or WWAN)
