Hi, I am totally new to computers and don't know much about them so I need some help. My brother came back for a month then left, but he connected a wireless router so that we could both use the internet, however since he already left and I am the only one who uses the computer I was trying to unconnect the wireless since my internet it not as fast as it used to be. I tried to do this and reconnected all the cables, but I can't connect online. I know there's a connection because whenever I reattach the cables it says internet connection found but I can't seem to access the internet. Have any ideas why?