I have the Ipad2 with wifi. My password was changed because I got a wireless Comcast modem. I understand the part to go to Wifi and choose a network, but in doing so it does show a few networks, including mine. I can click on any network "but" mine and they all a for the password. If I click on my network, I am getting an error msg saying, Unable to join the network. "DISMISS" with the name of my network in the box. I have no clue as to what to do from here. Anyone have the answer or sugg.