Reset a Brother HL-2270DW printer to it’s default settings

Reset network to defaults

Power off printer, hold GO button, power on
Hold GO button down until all lights are off.

Press GO button 6X

Print configuration

Press GO button 3X within 2 seconds

Print WLAN config

Press GO button withing 4 seconds

Enable or disable wireless network

Hold GO button for 10 seconds

David Gregory Medina