My 3DS won't connect to the internet.?

[JJ]

So I got a 3DS for Christmas, I hooked it up to the internet and it was working just fine. But then I went to another place and I needed to connect to the internet there, so I deleted my home connection set up a new connection and started working with the new connection.

So when I came back home I deleted that connect, and tried to set up a new connection with my home internet again, but it won't find the access point signal. It does pick up other signals but my home one doesn't show up. It has found my home one before, so I know it can connect with it, but it just don't show up.

My family and I are no strangers to electronics, but nobody has been able to figure out why it won't pick up our internet. Our internet does work (Using it right now ) but my 3DS just can't seem to find it.

Do you know what's wrong?

Thanks