It may happen that it only opens the interface when there is WiFi activity?
I remember reading that the console didn't even have the WiFi drivers.. They are located in the cartridges (that's why almost every single cart has the WiFi config thing) but then again the console has pico chat... But thats other protocol of communicating... (if I am right)
@Dodain47 may I suggest you to use pastebin.com? Create a single pastebin.com link and then edit with the new titles you test.. You created a mess in the thread..
OE maybe in github, or a Google docs Excell? that way you can even easily re use and edit when a new gba runner version comes out and there is more compatibility