to use wifi on your ipad u do not need to modify any settings on our ipad
just set-up your wifi router using a computer, if yor are unable to do it then just call up the router manufacturer
and set it up, once the router is set-up , u just need to go to settings on your ipad, turn on wifi and if you had set-up a password for wifi, u need to use the same password for ipad while connecting to wifi