[Paintballr]

Need help. We got another computer in our house and wished to connect it to the internet. We always had problems with it picking up a signal with the wireless intnert. So we bought a eithernet cable to connect from the router to the computer. We connected it and it said the computer has internet etc. It even downloaded a couple windows updates and scan download updates for other programs. But when we try to go on internet explorer on it it says failed to connect to server etc. Any suggestions?