For some strange reason, my Android 4.0 ICS tablet is no longer able to access the Internet. First, via wifi, tried it in two distinct networks. Then later, I tried to connect it via cable to my home router via dhcp. It could not. Still, the tablet gets an IP number in both cases. I don't know how this happened, if it is a route problem or a dns problem or other. Tried to install a terminal to check a route command, but it is not available (at least to me). So I ask what can I do to solve this issue? Restore original configuration? Other? Is there a way to check if dhcp is working? how to check route? how to change it?