Connect to wifi but not connected?

I just got my new ipod 4th gen 1 week ago and it connected to my internet just fine, but ever since yesterday it's been acting up. My ipod says it's connected to my wifi but when I go to use safari or apps it tell me that it needs to be connect to the internet. I've read through some questions and answers of other people on here, I've followed their steps on resetting my network settings but it's still doing the same thing. Is there any other way to get reconnected to the internet?