Unable to installl 802.11 in desktop PC

Win7Pro64; I have had no luck adding 802.11 to my desktop PC. I've tried two different USB adapters, and one PCI adapter. All claim to have 64 bit drivers. In every case, the drivers and software install, and device manager shows the device as "working properly." Yet, when I open the wireless configuration utility and go to connect, no networks are visible (there should be 6 - 8 at any time), and buttons such as "rescan" are grayed out. I've run the Windows Network Diagnostic, and it always suggests "a problem with the driver." Further Windows diagnostics gives the message "Windows couldn't automatically bind the IP protocol stack to the network adapter." When I look at the wireless network connection properties, it does show it bound to IPv4.

Since I tried three different devices from three different manufacturers, and all behave the same, I have to conclude that the trouble lies with Windows; probably some driver or service that is misconfigured or not running. Wlansvc is started, and Ethernet works fine. Any ideas would be very appreciated.

Thank you,
Howard

It seems to be the issue with the compatibility of the Network driver which might be not showing the compatibility with the Windows. Windows 7 is having lots of compatibility issue. It can only run with the latest version of the driver. So regarding your issue i will advise you to install the latest driver to the system of your from the Manufacturers site and see whether this is working for you or not.

Thanks for the reply. I thought that I might have had a driver problem with the first device I tried, and even with the second. But it is hard for me to believe that all three devices that I've tried, from three different well known manufacturers, all have bad drivers. (I did use the latest from each manufacturer in every case.)

Howard