Brother DCP-L3510CDW Reference Manual page 19

(DCP-L3510CDW/DCP-L3517CDW)
To turn the wireless network connection on or off, press a or b to select [Network] > [WLAN]
> [WLAN Enable] > [On] or [Off].
(DCP-L3550CDW/MFC-L3710CW/MFC-L3750CDW/MFC-L3770CDW)
To turn the wireless network connection on or off, press
Settings] > [Network] > [WLAN] > [WLAN Enable] > [On] or [Off].
If your machine displays the [All Settings] menu on the Home screen, skip the
[Settings] menu.
[Settings] > [All
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