Question [Q] Wifi problem on my Nabi 2 that I haven't seen addressed yet

We bought a Nabi 2 last year at Christmas. Everything worked fine for several months. Suddenly,it stopped connecting to the internet. When I get into settings,for our home wifi,it says ip address not available.All other wireless devices work here. I've tried resetting Nabi back to factory settings but that didn't help. I hope someone here has the answer. Thanks in advance.