I've owned my Wii since Christmas. From that day, I have not been able to access the Wii Shop Channel. I have set it up to connect to my wireless router. I have connected to the Forecast Channel to see the weather maps, and have connected to the News Channel. However, when I go to the Wii Shop Channel, it goes to a blank screen and does NOTHING. I can't go back to the menu or anything. I have to hold the Power Button on the console for a few seconds to turn it off.
I've read through a few other forums where folks are telling people to check router settings, etc., and to be sure it's connected. Mine connects just fine as I can access the weather and the news channels, just not the shop channel.