Brother MFC connect to WLAN:

Touchscreen: wi-fi icon

Setup wizard

Enter Wi-Fi network credentials to connect

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Touchscreen: wi-fi icon

TCP/IP

Boot Method

select Auto

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Touchscreen: wi-fi icon

find line with MAC address, take note of MAC address

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Connect to wi-fi router via browser

Among connected devices, find device which matches printer MAC address

Reserve IP address of the device

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Printer should be visible from Brother software suite with select device

If printer visibility not consistent, restart printer.