I just purchased this USB wireless router:
http://www.newegg.com/Product/Product.aspx?Item=9SIA24P0PF0492

I installed the SOFTWARE from the supplied disc that came with it and plugged in the usb router... COMPUTER recognized it and gives me a message that it is connected. Incidentally I am connecting to my iphone as that is what I use for my wireless hotspot. So even though the PC says its connected in the dialog window for network activity, I try to check email or launch IE or Google Chrome and nothing is FINDING the internet.!!?? Why would that be? The computer said it found the wireless network. So how do I get it connected to the internet? Any suggestions here?Is it plugged into a phone line or cable connection? Do you have internet service at your house?
It is just a wireless usb adapter plugged into back of PC. THen it grabs the wireless signal from my iphone to give internet to the PC. I mentioned that in my initial comments. The signal is recognized but when I open IE or any browser...nothing. So NONE of the PC applications that require internet is recognizing. Why is that?

If you are running Windows 7 go to Control Panel - Network & Sharing Center. For the connection, does it SHOW Internet access? Try to let Windows "repair".Running Windows Vista. It does show that it connects to the iphone. But when I launch internet browsers...nothing. No connection.

http://customer.comcast.com/help-and-support/internet/access-network-and-sharing-center-windows-vista/Try also double checking tethering settings for your iphone http://www.pcworld.com/article/240794/how_to_tether_your_iphone.html