First thing I would try is this... connect your Tablet to another WiFi network, like you friends, neighbor, workplace etc.... see if it can browse on one of those networks.... if it does browse then at least we know the problem is definitely on your network, if it does not browse, then we know that the problem is with your Tablet.... just gotta isolate first... Unless you know for a fact that your WiFi network is working as you have other devices connected and browsing without issues.
To Know, Dare, Will and Keep Silent.