HP Notebook Series Reference Manual page 50

Modem and Network Connections
Turning Off Communication and Ending a
Connection
1. Close any files that reside on other network notebooks.
2. To turn off the wireless 802.11 communication without
turning off the notebook, press the wireless on-off button.
-or-
Right-click the wireless network connection icon in the
taskbar, then select Disable.
Putting the notebook in Standby or shutting it down also turns off
the wireless function.
4–8 Reference Guide