You can't. That was only for Platinum. In platinum however, you go to the bottom part of ANY Pokemon center. Talk to a hippieish girl, and she'll let you in.
Via Nintendo Wifi.
The only way to get wifi free is to use someone elses wifi receiver because wifi was not dizigned for Pokemon. Nintendo got permission to use wifi so Pokemon games can be connected to wifi. :(
check wifi
go to jubilife city and go to the school.go and you will notice a big bright building.if you do not have at least one gym badge then a guy will not let you in.but if you do go inside the building and have fun
Paulkia, Uxie, Mesprit, Azelf Rotom, Manaphy*(AFTER Elite Four) Heatran, Regigigas, Giratina, Cresselia, Shyman*, Darkrai**Are only available through Nintendo WiFi events/Beating Pokemon Ranger games and transfering them in.
The wifi plaza is in the Pokemon center, the floor under nurse joy, and you go all the way to the clerk that has the different outfit on and she will take you there.
you need to get an azure flute with the Nintendo wifi and go to spear pillar (where you get palkia)
You need wi-fi for this so go into an area where you have wi-fi and go in the Pokemon center use the escalator that goes down and go to the women in the first line. Then you will have accsess in wifi plaza.
In Jublife City
You need a wifi router or a Nintendo wifi usb
Yes using the Wireless connection for the DS or Nintendo wifi connection.
that's only on platinum
to get mystery gifts you have to go to events on Nintendo wifi if you have already got a mystery gift in game then go to a pokemart
You can get it through the Nintendo wifi.
You need Nintendo wifi connection for your DS once you have it access the GTS then all you need to do is offer Pokemon or take someone else's offer and trade Pokemon with them.
if you are talking about your Nintendo wifi id you get it when you go on wifi
because you need better wifi