it's been a problem for 3 weeks and you didn't contact Nintendo customer service ? Just call them and they'll help you trouble-shoot over the phone. --- Go Go Big Underpants !!!! http://i.imgur.com/LBWlN.jpg - http://i.imgur.com/K0UBk.jpg - http://i.imgur.com/xzXVR.png
If you are sure that your Wi-Fi connection is fine, then I can only think of 1 problem: Somewhere along the path, someone blocked access to the Nintendo eShop.
It may be because your router is not correctly configured, or your ISP blocked it, or some other firewall along the way blocked it. --- http://www.kino-no-tabi.com/images/sigs/gakuenkinonotabisig_v2.png http://www.kino-no-tabi.com/images/sigs/kino_qr_mod.png