@thinktank 

Here is a guide I found for your printer on setting it up via Wi-Fi: https://help.brother-usa.com/app/answers/detail/a_id/69940/~/wireless-setup---using-the-control-panel

@thinktank I had an issue with my Brother HL-L2360DW as it was detected by my Deco M9 Plus . It showed as Gatewayxxx and I believe also as BRN xxx but I couldn't set it up wirelessly no matter what. I discovered I could blacklist the device. I did so and that worked. Hope it helps someone else. (All this after spending a very long time with Brother to no avail)