I tried changing my wifi to WEP so it would work with my DSI XL, but I wasn't able to connect after. What should I do?

[WPCentral Question]

I tried changing my wifi to WEP so it would work with my DSI XL, but I wasn't able to connect after

I tried changing my wifi to WEP so it would work with my DSI XL, but I wasn't able to connect after, I then reset my wifi settings on my router then tried to connect to my iphone, with the correct password but it keeps saying incorrect password