Please goto Start --> Run --> type CMD and press OK --> then type: IPCONFIG /ALL - please post the results here by right-clicking on the Command Prompt window, selecting 'Select All', pressing the Enter key, and then posting on this forum. Alternately, you can save your information to a text file by using the following command: IPCONFIG /ALL > C:\ipconfig.txt -- navigate to that text file, and copy/paste the information from it.
Also, to ensure that there's no software getting in the way of your connection, try restarting your computer into Safe Mode with Networking and then try to run the Wireless Network Setup Wizard again -- or just try to connect and browse the Internet. Are you able to?
How to restart into Safe Mode with Networking
Please restart your computer and as soon as it starts booting up again continuously tap F8. A menu should come up where you will be given the option to enter Safe Mode, Safe Mode with Command Prompt and Safe Mode with Networking (along with a few others). Please tap the down key until you reach Safe Mode with Networking, and then press the Enter key. Your computer should now boot into Safe Mode with Networking.