The 3DS I bought back on first release, February of 2011, cannot connect to wifi anymore. I've tried on several different sources in different locations, so it isnt the wifi that's the problem. I think the console is busted, but I want to be sure.
My run through whenever I try to get wifi again is: Sys. Settings > Internet Settings > Connection Settings > New Connection > Manual Setup > Search for access point. In the end, I get "Could not find any access points. Change your location, or confirm that the access point is active, and try again."
Also, if there's no way of fixing it, I'd like to know if there's a way to solidly connect to internet.