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
The lights do not go off