I have a new D150 Wireless N USB adapter. Installation is fairly simple. Network was recognized and wireless adapter shows it is connected BUT I still have no internet connection. The network map shows a big red X between the internet and the router, BUT it is connected, because I have internet service on my desktop which connects to the router and cable modem. Some but not all of my peripheral will connect, such as laptops, Kindle's, and Nooks. What is going on? Is this some kind of security issue. I can't figure it out. HELP.