Not sure if this is in the right section since there doesn't seem to be a wifi section yet. Current have AT&T for my internet provider and using the 2wire 2701 HG-B router. I've tried the automatic setup. And input the information manually. At first, I left my setting alone on WEP since I used it for my DS Lite to get on in the past. But then I switched to the WPA2-PSK setting as well. Even set the router to open without any security and I still can not connect. I've also went through the troubleshooting section on Nintendo, which had instructions for the router brand for IP address, and DNS. Still no luck with it. Even tried switching the channel to 6 suggested at the very bottom of the troubleshooting section. I was able to update my firmware on my friend's wifi, which is on a netgear router. And I retried everything again mentioned above at home with my 2wire. My lite is still able to get on if I switch back to WEP. I tested it out where the lite can get on. Then I turn off the lite and used the 3DS version of DS wifi and that couldn't get on. I am very confused right now. Also, while at my friend's we tried to exchange friend codes via local wireless. For some odd reason, he could not connect to mine, but he could connect to his sister's 3DS. I am wondering could I have a defective unit? I don't mind getting the same netgear router as my friend to solve the wifi issue. But what's causing me worries now is not being able to even send friend codes on the local wireless. If anyone out there with a 2wire 2701 HG-B knows the answer, please let me know. I've also set a detailed message to Nintendo and awaiting there response. So far they haven't responded to me in the past 2 days. I might call the customer support instead to see what they suggest.