Anyone have this problem with an iPad 2 with Retina?

I just bought an iPad with Retina (WiFi only) and my Wifi signal keeps dropping. The iPad is still showing the signal strength in the top bar, and in the setting it is showing the strength and that it is connected. My wireless computer and phone are still connected and working properly to my home WiFi. But, it won’t work on the iPad. The only way for me to get it working again is to turn off and back on my cable box and router, which is annoying because it is in a part of the house that I can not always access. Is this a perisitent problem? I have tried resetting my wireless settings in the iPad and other online suggestions I have found.