just a FYI, if you get connection error.
go to internet settings with Wifi hotspot on your phone ON,
have your 3DS create a connection with your phone so it connects, name is usually AndroidAP.
have that be your ONLY connection, so not both your home wifi and androidAP
this will also prevent you from connecting to the internet on your SysNAND
you can set up regular wifi on your EmuNAND when that is working..
also make sure your mobile data is turned off, because it will not work if that is on
you know when it is on if the IP adress from the exploit starts with 10.xxx.xxx.xx etc
it must start with 192.xxx.xxx etc
tl;dr
make sure AndroidAP is your only connection on the 3DS sysnand and 4g is off