First of all, DS i sux, but since I'm really nice, immana freakin tell u how to do it.
There's only one thing to do, and it's really easy and simple. GO ASK YOUR MOM ABOUT IT.
First, you need to buy a Wireless Router.Next, go to the System Settings in your Dsi.Next, slide on over to the Internet bar.After that, go to the Connection Settings.Finally, get an adult to help you configure your settings.
You get it by going on the dsi shop. and on the settings you can cet wi-fi connection.
You have to have wireless internet, then you tap options, tap internet, then it will tell you what to do next. You can configure your DSi's internet connection settings via the Internet option on the third page of the system settings application. You must either have a home wireless network (i.e. a wireless router currently connected to the internet) or a Nintendo WFC USB Wi-Fi connector for your DSi to get online.
go on the shop channel, dsi ware, select free, press internet then download. Finally you need to configure your wifi settings
go on to system settings and look for Internet then tap it then tap connection settings then tap any connection and then it will automatically connect to wifi
Assuming you're using a DSi or DSI XL, and you have access to a wireless network, you may access the Web as follows. On the DSi menu, select Settings > Internet > Connection Settings. Select one of the available connections and you'll be asked to configure your wi-fi settings. Do so - if you're not sure of the settings, ask your wireless provider. Once you are connected, the DSi will automatically download the required application. Wait for this to complete, then return to the DSi menu. You will find a new program called the DSi Browser. Select the DSi Browser, and you may use it to surf the Web. Make sure you remain in range of your wireless point, though!
download the app in the dsi shop under FREE, find/get a wi-fi connection and set it up in the settings.
First go to your dsi xl menu. then go to system settings . next go to internet in system settings. Then touch connection settings . then touch a connection that says none and hit search for an access point and hit the one is yours. If you do not have internet browser go to dsi shop and down load it.
One of the first 'DSi-enhanced' games was Pokemon Black and White, which could do things like use the DSi's advanced connection settings, letting it play over a WPA connection.
You can use Wifi on a DSI, if it doesn't work with you then it's probably because you have WPA connection security settings. WPA connection will allow you to surf the internet and go on the DSI Shop etc., but will not allow you to play games over Nintendo Wifi Connection. To do this, you will have to change your settings to WEP so that you can play on Wifi on your DSI. However, WEP is not as safe to use an internet connection as WPA, so be careful. Hope I Helped... Emounders
You go into connection settings and connect it!(But You May Have To Be In The School)
at the ninteno dsi shop whitch wou can not access without a internet connection. the network password unfortunately has to be the less secure wep password. :( EDIT: No it doesn't. It can be WAP by going into DSi settings, internet, connection settings then advanced setup. There you can make 3 WAP connections. Hope i helped. :) I hope this helped!