Brother printer won't connect to KVD21 Gateway

I was looking at a note I made from Nater Tater's YouTube video which shows the 2.4 GHz radio with WPA2 and AES authentication. His video was showing how to edit the settings, i.e. turn off the WIFI radios in the KVD21. Any way the key point I am trying to make is the "default" for the 2.4 GHz may be WPA2 and AES encryption so making sure to match the GW and printer values could make it work. Using "auto", if that is an option in the printer might not play well. 

Seems you have a reasonable work around. Well, with older gear and driver issues maybe… things just don't always play nice. Good you were able to get it working.