Wired Equivalent Privacy (WEP) codes are encryption keys used in wireless networks. When configured to use WEP, the network administrator will create a WEP key and then provide it to the network clients. WEP is no longer considered to be secure, and WPA/WPA2 have replaced it in most recent equipment.
If you need to access a WEP-encrypted network on your Nintendo DSi, you should talk to whomever owns the network.
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in the WEP box
It's usually a WEP Key issue.
i can connect on my Thomson with my dsi XL only if i set it open(no encryption). When i set a WEP key the dsi XL does not accept the code. I am 100% that i am entering the correct code. I have tried it like 100 times. Its a mystery to me.
WPA or WEP
The WEP key is the encryption code needed to access a wireless router.
eg wrong password or you are not close enough to your internet access point and check WEP instead of WPA
The WEP code would probably be located somewhere on the router, or you could go to like Game Stop and buy a Wi-Fi USB adapter.
You can go to a site, but not on your DS/DSI/3DS. Ask someone YOU KNOW for their Friend code. You also must have Wi-Fi either unlocked, or WEP.
WEP only. While the DSi and the 3DS are capable of using WPA encryption, this is only for the browser/stores, or for special 'DSi-enhanced' games like Pokemon Black and White. So even in a DSi or 3DS, Super Scribblenauts is only compatible with WEP encryption.
The 3DS uses the 'same Wi-fi', it support WPA and WEP encryption, which the DSi supported too, but the DS could only use WEP.
This is a problem with the security settings on your wireless connection. To do what you were doing when the error code appeared, change your wireless network security type to WEP, or disable security (not recommended).